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Webinars SET B - Grades 1-2 - Sunday@5:45pm EST
Webinar 1 Recording
Webinar 1 Recording
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Welcome, everybody, to MassCan group webinar. And this is a set B. So I just want to give a quick explanation. Set B is a little advanced license. We have a set A already happened during the last fall. If some students, you have never taken set A, and you feel a little difficult when you're doing the set B webinar, we just recommend you to maybe you can purchase the previous set A webinar, and you can catch up on the basic level lessons. My name is Lucia. I will be your teacher in this webinar lesson. My TA is Elita Yu. Elita, would you like to say hi to students? Yeah, hi, everyone. Thanks for coming today. Yeah, OK. So you see that today we'll work on the advanced patterns. So each lesson, we will focus on advanced strategy. In the set A, we already learned the basic level patterns. We learned something about the pattern. And I know some students, you might have idea about the pattern. But today, we will do the deeper discussion in the pattern. First of all, come to MassCan group webinar. Some students might come from the last session. You have known the rules, but some might be the new students. So we would like to repeat the ground rules. Elita, would you like to go through the rules with the students? Yeah, so the first rule is that you join the Zoom meeting with video off and the microphone muted. And it stays that way for the entire session. Then the next one is that all the lessons are recorded, and the link for the recording will be shared after it. Because it's a webinar, we have less interaction. But our pace will be trying to accommodate more students. And we often have the poll to collect answers from you guys so we can see what problems you need more help on. You guys are not allowed to speak, but you guys can message me in the chat or just message the chat in general if you have any questions. And I'll do my best to answer them. And lastly, all of the handouts are in the shared folder. So try to have those prepared in advance because they can be really helpful for the lesson. Yeah, thank you, Elita. So we will share the recording shortly after each lesson, and we do not have homework. We do not have class notes. So this is a difference with our small group lesson. So let's go through what is a mass cancer rule first. So some students, you might have already taken mass cancer rule computation. Some might be new. Elita, please open the first poll question. We let students practice how to answer in the poll but also we would like to know how many students have taken mass cancer rule computation before. Yeah. If you just join, you just select a yes or no, if you have taken Mascarin computation before. Some first grader students, I think you would be the first time to try this computation. OK, so we can share the result. Yeah, so most of you have never taken before. This is your first time to try this computation. But I would guarantee you, this is very interesting, fun computation. So some students start from the grade one until grade 12. Elita, you can share your experience. How do you think about Mascarin computation? Yeah, I'm in 12th grade now. So I will be doing the competition again this year in the spring. And I actually have been doing it since first grade. So it's kind of like what Lucia says. It's probably the most fun math competition out of all of them. That's why I've been doing it every year. And I think the thing that's really good about Mount Kangaroo is it covers all the grades from one through 12. So you can kind of do it for your entire grade school life. Yeah, thank you, Elita. Yeah, so like Elita mentioned, we open to all the first grade to 12th grade. And also, we will award the students for the national top 20 and the state top three. So after competition in a month, you might get your result. And you would know if you could be the national winners or state winners. Yeah, so and also the competition. So even the competition, just a one day event. But the learning, it would be the daily work. So Mascarin Kangaroo, the question really fun and really focus on the problem solving and critical thinking. So when you learn from this webinar, I hope you can enjoy the learning and you can improve your math skills. So here, this is the international math competition. So there are over 100 countries host the competition on the same day, every year, on the third Thursday in March since 1998. This year, it would be March 20. So the test would be 75 minutes. It's individual test. Multiple choice. For your grade level, it would be 24 questions. Grade one to four would have 24 questions. Grade five about would have 30 questions, but still the same time. So this is a fun, challenging competition. You will know when you try to solve the problems. So for this webinar, we use all the previous test questions to show you how the Mascarin Kangaroo problems look like. So here, when we talk about test, you would think how this test look like. So would that question be like 34 plus 9, Elita? Is that the question ask you this kind of addition, simple addition? No, never like that. It's usually a little bit more complicated. Yeah, they just ask you to recognize some shapes or give you a very straightforward question ask you to solve. Yeah. It's not so straightforward, but I think it's more fun when it's a little bit complicated. Okay, yeah. So here, yeah. So, you know, everybody like the chocolates. Yeah, I believe. Yeah, so Mascarin question look like a box of chocolates with different flavors. So you'll never know when you try it. Yeah. So here, look at the questions. So we pick some question from the test. So you can see the questions with the pictures look like puzzles, riddles. So this very fun question, like we mentioned. So most of students, when they finish the competition, we ask them, how do you feel about the Mascarin group? They said, oh, this is a fun competition. And some students said, oh, this is still a little challenging. Yeah, so you can taste the both. Yeah. So here we mentioned the competition would have 24 questions, three sections. First section would be three-point section, eight questions. The next one would be four-point section, eight question again. And the last eight question would be five points. So you would see the question number get bigger, the question get harder. And also the first eight question would be easier. Usually it's a one-step solution, but we still recommend you to use your pencil to write down the solution, help you to check later. And for the four-point section and the five-point section, the question would get harder and harder and would involve a lot of strategies. So you can see the drawing picture and your special thinking and the logical reasoning, guess and check, something may not listed here, yeah. So that would be all the strategies could be applied to solve the problem. You can use one or you can use more to solve the question, help you solve the question. So this next 16 questions, we say it's a harder one. So that's why in this webinar series, we would focus on those type of questions and give you some clear idea and guidance how to solve those problems. Okay, so we will start our work together. Hope you enjoy the learning. So first, yeah, you see the title, it's an advanced pattern. Yeah, so patterns is everywhere in your life. You can see patterns every day, yeah. So we, you already ask what is pattern? Pattern is something changed in specific way. And which can repeat or change regularly. So you can create a patterns with shapes, numbers, and colors. So for patterns, how to identify patterns, you usually need to find the rule for the pattern. What type of question would it be? What's the rule? And then you could predict what happens next all in a few more steps. So in this lesson, yeah, we will reveal something we learned from the set A. So in set A, we learned about the repeating pattern. So you can see the patterns could repeat by the colors, by the shapes, or maybe by numbers sometimes, or the size of the shapes, or even you can see the sound, anything. You can do the sound, you can do the color, or even you can see the sound, anything, you can do the repeat. And you would figure out how many items they would do in one repeat cycle, yeah. So you need to figure it out, yeah. So find the repeating start and end, and then you could answer the question. So this is very often. I know some students, when somebody ask you, what is pattern? Some students, pattern is repeating. Yeah, that's correct, but not 100% for repeating. And you would see other kind of patterns. So the next one would be the growing pattern. Yeah, we learned before. Like you sometimes do the scape counting. So you can see this is number pattern, and this is even numbers, or all the numbers, or maybe you scape more. If anybody learn about the times table, so you would know those all scape counting, yeah. You can scape by three, scape by four, scape by five, and so on. So here the shape patterns, you all can increase the amount of the shapes, yeah. And also the size, you could from small to big, or if you do the reverse way, you will from big to small. So sometimes we call that as a shrinking pattern. So those we learned before. This is a quick review. And we have some new pattern we would develop in this session. So here, Elita, would you like to go through this part? Yeah. Yeah, so an alternating pattern is a pattern that alternates. So you might also call this a repeating pattern. So you can see the direction patterns. If something goes up, then down, then up, then down, you kind of get that every other element is up and the rest of them are down. Or similarly, jump, sit, jump, sit. So you guys might see this like when you exercise, you might do an exercise and then take a break and then exercise again and break. Or a color pattern, like yellow, green, yellow, green. So you can think of like a stoplight or something. Like a stoplight will go green, yellow, red, and then it'll go back to green, yellow, red. So it's kind of like that. Yeah, pattern is everywhere in your life. Okay, so Elita, would you go through this again? Yeah, so a symmetrical pattern is a pattern that is a mirror image. So you can see if you like draw a line down the middle of these images, it's the same on both sides. So there's a butterfly and then there's a button and then there's a kind of like a funny little shape, but you can see how those are symmetric patterns. And then a block arrangement is cubes that are arranged to create a mirrored design. So this is pretty similar to a symmetrical thing. So you can see that there's two cubes like that. So in the middle, right between them, that is where the mirror would be. And you can see it's the same on both sides and it's the same for the other one, except for each one the axis of symmetry is a little bit different. So when you do the mirror, sometimes you do the upside down, like you look into the water. So that would be upside down. So top, bottom reversed. If you look into the mirror in front of you, so you would have a left or right reversed. So that's totally different. You have to make sure when you mirror the image, what would like be. Yeah, Elita, can you also go through this one? Yeah, so alphabet or word patterns. So an alphabet pattern, this is just like letters in the form of a pattern. So you can see this one is also an alternating pattern. It goes A, B, A, B. So every other letter would be an A. And then a word pattern is very similar. So cat, dog, cat, dog. This is also alternating. It alternates between the words cat and dog. Yeah, so at the beginning, we just show you how many different kind of patterns you might meet. And when you try to solve the problem, you can have an idea how to solve them. So which one you should do, what rule you can find. So next one, you also can see the pattern for the time. So you can see today is a Sunday. And after seven days, there's another Sunday coming. So this is a repeating pattern for the weekdays, yeah? And also for the months, it's the same. January through December. Yeah, so that's repeating. And also seasons, the fall season is also repeating. Yeah, so here, like the time pattern of the day, you have a morning, you have a noon, you have afternoon. And also some of the routine for you. So for the weekdays, every day you wake up, you brush your teeth, get rest, you eat your breakfast and then go to school. You repeat that routine every day. Yeah, so those kind of pattern you can find. So now let's look at the questions, yeah. So at the beginning, we would have some simple questions, a little easier question. And we would see how the students have an idea about the pattern question. And we will adjust our class pace based on your performance. So parents, please do not help your student to answer the question. Please let the students try by themselves. So we will try to accommodate the class pace to the average, yeah, the level of the class. Okay, so Elita, would you like to read this question? Yeah, a magician is pulling toys out of his top hat. He always pulls out the toys in the same order as shown in the picture. The pattern in the picture repeats every five toys. Which two toys does he pull out next? So they kind of give you a hint. They say it repeats every five toys. So you don't have to really decide how often it repeats. Yeah, so this question from 2020 test is question four. So this is a three-point question. Usually it's a one-step solution. Elita, you can open the poll. I put the image in, so. So parents, please do not have your students answer the question. Let students try it by themselves. If you do not know how to use the poll, you can ask your parents to help you, or you can send a message to us so we would know you cannot use the poll. Any students mentioned they cannot use the poll? I don't think any students mentioned it to me. Okay. Okay, so I think I will end the poll here. Yeah. So most of you guys chose E, which is the correct answer. Actually, almost all of you chose E, so I think you guys pretty much understand this kind of simple pattern. And for this one, you can kind of see that. So you see the first five, it goes rat, snail, bird, bird, frog, and it's the same thing for the next five. So that's what it means when it repeats every five toys. And then we can see there's a rat, and he pulls out two toys after that. So if we look at the pattern, we can see that after the rat, there's a snail, right? So the snail should be the next toy. And then after the snail, there's a bird. So the correct answer should be he pulls out a snail, and then he pulls out a bird, which makes it E. So for this kind of question, so you can draw on the picture. If you do the in-person test, that means you have a test booklet. So you can draw on the test paper, but do not draw on your answer card. So sometimes they give you the picture, you still can draw on the picture to help you to solve the problem. For this one, I would like to recommend you to separate the pattern, the repeating, every five repeat. So you just draw the line to separate them. So that would help you to figure out, so what's the starting of the pattern? And you could figure out what's coming next. So here you can see we put 1, 2, 3, 4, 5. Or you can put A, B, C, D, E to help you to name each of the items in the pattern. So that's easy for you to find what's coming next, or next few steps. Yeah, so this is also not a very hard question. Yeah, so this can still warm up. The question is, after 1 comes 3, after 3 comes 5, after 5 comes 7. What are the next three numbers? So this is a three-point question. Usually we recommend you to solve this problem during the test in one to two minutes. So if you need more time, so you might not have enough time to solve the later questions. So when you have learned the lesson, you might practice some of the previous test and you can manage your time before the real competition. Try to learn how to solve each different sections and how much time you might need. So that would help you, yeah, to do the real competition. Okay, we would like to share the poll. Yeah. Yeah, it's good. Yeah, most of you get the correct answer. So because they ask next three numbers, so you should pay attention what the question ask for. And they didn't ask for the next number. So you have to make sure you answer the correct answer. So this is a very easy one. It's a skip counting, yeah? We mentioned growing pattern, skip counting, skip by two. And this is all the numbers. But the only, I think the part, if you do not pay attention, you answer the next one. Yeah, so that would be not the correct answer because they ask for next three numbers. So pay attention to what the question ask for. So this one we want to mention. When you read the question, so when you try to solve the problem, first, you need to understand the question. You need to read the whole question, maybe one time, two time, or even three times, and try to understand the question, and you know what question ask for. So this is very important. If you do not understand the question, you do not know what question ask for, you cannot answer the correct answer. Okay, next one, Elita. Sophie arranges balls on a stairway in a pattern as shown in the picture. How will the balls be arranged on the step with the question mark? It might be a little bit difficult to see the answer. Yeah, the image is not very good. I couldn't find a better image for this one. I think- But I can tell you, you can see the stairs. You have a black, black, white, black, white, black. So that's by, yeah, that would help you to figure out the pattern. Yeah, I think the answer choice D has nine balls, and the answer choice E has 10 balls. So I think it's a little bit hard to see the difference between those two. I think that's the difference. Yeah, thank you for the clarification, Elita. That's really helpful. Yeah, to make sure, 1, 2, 3, 4, 5, 6, this is 8 balls, and this is 9 balls. This is also 9 balls, this is 9 balls, and this is 10 balls. So you might not see the white one clearly. So just give you amount of the total. You can see the question number is nine, so it's a four-point question. Yeah, you can see the question getting harder. When the question number bigger, the question is harder. Yeah. Awesome, I think I will end the poll soon. So I'll give you guys 10 more seconds. Yeah, so you're ready for the four point question. We recommend you to use two to three minutes to solve. So if you really need more time, you would consider. So the later questions you might not have time to solve. Yeah, so the time management is very important in the real computation. Okay, I think I will end the poll now. So you guys can see most of you said D, which is the correct answer. So good job everybody. So the thing about this question is it's kind of two patterns in one. So the first pattern is that the balls alternate in color. So you can see like on the fifth step, it goes black, white, black, white, black. And that's true for the previous four steps as well. And sorry, there's another ball gets added with each step you go up. So on the first step, there's one ball. On the second step, there's two balls. On the third step, there's three balls. So then on the ninth step, there should be nine balls and the balls should be alternating in color. So the only one that matches that criteria is D because you can see in A, there's not enough balls. And B, it starts with a white ball and we need it to start with a black ball. In C, the balls aren't alternating in color. And in E, there's an extra white ball at the end. So the correct answer should be D. Yeah. So if you didn't see the answer choice clearly, so you choose the wrong answer. So that's not a problem. So we will have other questions would be give you very clear options later. Yeah. Okay, next one. Now this is clear, yeah? Builds towers in the following patterns. They already gave you one, two, three, four, five. Yeah, you can continue. And what will be the 16th tower look like? Please pay attention, make sure you find the correct answer. Because there are multiple shapes in each answer option, so you have to pay attention to the orders. I think this question is more like a four point question. Elita, what do you think? Yeah, this one I think is a little bit difficult. Yeah. Yes, this lesson we work on the patterns, yeah, so it's all kind of different kind of pattern. Yeah, like we mentioned at the beginning, some students might join late. So in the very beginning, we have a, we have a summary goes through all the different kind of patterns. And after class, we will share the recording. So please go back to listen to the first few minutes you missed. And that would help you to get more idea about what we are going to do in this lesson. So this is advanced pattern class. So some of you might have joined the class last year in fall. So that's a set A, that's a basic lesson. And this is advanced lesson. And also, if you have never joined the set A before, you would like to catch up. We have the previous webinar, I think that that's ready for purchase. So you can, you can just, you know, if you would like to, to learn from the basic level, so you can, you can get the previous webinar. I think enough people answered already. So I shared the results for that one. Yeah. So look at the results. The correct answer would be E. Some of you didn't choose the correct answer. So we will go through the solution to show you how to solve this one. So first, you need to identify the patterns. Yeah. Some students share in the chat said, I see the patterns. Good job. Yeah. So the patterns here, that's repeating pattern. So you would see every four you repeat. Not like previous question. They didn't tell you how many they repeat. You remember the one question before they tell you every five repeat, but here they didn't tell you. So most of the pattern questions for the repeating patterns, you needed to identify by yourself. So here is every four repeat. And also you have to pay attention to what? To the orders of each items. So every item you have four shapes, same shape, but they put in a different order. And you would see that one, you have the yellow rectangle on the bottom and then the black ball on the yellow rectangle. On the yellow rectangle. And then you have the blue trapezoid and a square on the top. So this is the order for them. But the next one, you would see that they just move up. Everything move up and the top one move down. So you can see this is a change. Yeah. So the bottom move up, the top one move down. Bottom move up, top one move down. Bottom move up, top one move down. So this can change the order in each for all the four shapes. Yeah. So here and you would see start from five. It's the same as one. So you would know we list all the options for you. But actually you do not really need to list it out if you understand the pattern. So you can find it directly. Yeah. We list them out just to show you very clear idea. Yeah. How the patterns continue growing. Yeah. So you would see the 16 would be exactly as a four. Yeah. Exactly as a four. Yeah. So here that's a confused part. Some students, they choose D. But you see, what's a D look like? The D, you have the top have yellow rectangle. But the second one, you have a trapezoid. But you can see the four, you should have a second one, you should have a squares. So that's the difference. So I tell you, this happened a lot. Mascot group has five answer choices. Only one answer is correct. So you only have one correct answer. So every time you have to look through all the options very clearly, very carefully. Because some options really, really look like each other. Really similar, has minor difference. If you do not pay much attention, you might select the wrong one. Yeah. Elita, what do you think? Did this happen to you? Oh, this has definitely happened to me in the past. That's why I think double checking is so important in this competition. I think even when I looked at it for the first time, I also thought they looked very similar for this question. So yeah, it's definitely a little bit tricky. So you have to look through all the five options. Do not just say, oh, the A look like the correct answer. Then I stop. I choose the answer and move on to the next question. No, that's not the right way. You have to look through all five options and make sure you choose the correct answer. Yeah. Based on your knowledge. Yeah. So this is a very, very tricky part. You have similar answers, very close to each other. So you might select the wrong one very easily. So pay attention. So this will bring another point. So once you finish the question, you select your answer. So please do not just directly move on to the next question. Take a little bit of time to review your answer, to put your answer back to the question or use other method approaches to check your answer. So make sure you do not stuck on one question. You have enough time to do the rest of questions. But sometimes we recommend you, once you complete every question, please take a quick check. Yeah. To check your answer before you move on. Okay. Next one. Anita. Yeah. So which of the dots are covered? And there's the poll. This time is clear. Yeah. Okay, I think that's most people, so I'll end the poll here. You guys were very fast with this one, and it looks like almost everybody got it right. So yeah, I thought this one wasn't that easy, but good job, everybody. Yeah, this is 22, yeah? So there's a 5-point question. Yeah, you're really good at the patterns. Yeah. Yeah. So you guys can kind of see that this is honestly a little bit like the staircase one, I think, in that it has two patterns. So the first one, you can see it's kind of split up like that. So the first one, there's one black followed by one white. And then you can see two blacks followed by two whites, three blacks, three whites. So then for this one, it should be four blacks followed by four whites. So you can see, it gives you two black dots to start. So you know you need two more to get to four black dots. And it ends on one white dot, but you have to have four white dots. So that means it should be two black dots and three white dots together, which makes it C. Yeah. Good job, everyone. OK. Next one. Peter drew a pattern twice, as in the picture. Which point will he reach when he draws the third pattern? I believe this one should be on the handout. If you do not have a handout, you can try to draw on the screen. So if you try to imagine your mind and manipulate your mind, sometimes it's not easy. So draw it out would be very helpful. The poll is still on, so if you cannot see the poll, I think you might need to check your open windows. It might be hidden somewhere. Yeah. If you really cannot see the poll, you can send your answer to Elita. So sorry, you cannot change your answer. If you click the wrong answer, you cannot correct it. So that's, let's make sure, you know, every time when you submit your answer, you'll double check your answer. Yeah, before you submit. Yeah. I think on the actual test though, you can go back and change your answer. If you have experience to do a lot of practice, it might be easy, but I would guarantee you, so every year. So there's still some very challenging question and you can do well in the competition, but if you want to do like the top winners, so it might not be easy. Yeah. Okay, so let's share the result. Yeah. Yeah, the correct answer would be D. Yeah, most of you select the correct answer. Congratulations, yeah. So some of you, you might not draw the picture or you maybe imagine in your mind not clearly. So let's share the solution here. It's very clear. So you can just continue the pattern. So for this one, you would know you draw the big square. Yeah, like a big square, yeah. Like a big square, yeah, but without the bottom line. And then you draw another medium one, and then smaller one, and then you continue. You start with a big one again. You see here? Yeah, that's your repeating started, yeah. So here, you could do the next repeating start here and you continue draw. You draw the big, medium, and small, the squares. And you would see only cross the D, the other points you would miss. Yeah, so this is D would be correct answer. This is not hard question, even four point question. So if you draw the right pattern, draw the right shapes, so you would select the correct answer very easily. Okay, next one. Okay, what number is covered by the question mark in the last picture below? This one is a little bit tricky, I think. Yeah, that's a little bit tricky, yeah. This one's a little bit hard. This is a five point, it's the worst five. We already closed the poll until most of the students answered the question. So that's how we accommodate with the average class pace. For the five-point question, sometimes you might need a three to five minutes to solve the problem. But I know sometimes you might just solve it very quickly. Yeah. So if you're really good at that type of questions. I think we can share the answer now. Yeah. Okay. So I thought you guys were going to have more trouble with this one, but it looks like most of you guys got the correct answer, which was A. So very impressive guys. Good job. Yeah. Yeah. So I was surprised too. Yeah. Very nice. I thought this was a hard pattern a little bit. Yeah. This is not the regular pattern. We also didn't mention before. Yeah. In the previous session, when we try to tell you discover more different type of the patterns, we didn't mention this type, but we did a great job. Yeah. Okay. Elita, would you like to explain? Yeah. Yeah. So you guys can kind of see here. I feel like once you know the pattern, it's pretty easy. But so for the first one, there's four, I think those are cupcakes on the top and two cupcakes on the bottom. So if you take the difference between them, four minus two equals two. So that's why it has a two in the center of it. And then for the next one, you can see there's five cupcakes on top and one cupcake on the bottom. So if you do five minus one, you get four, which puts four in the middle. And then for the next one, you have seven cupcakes on top and four cupcakes on the bottom. And seven minus four is three. So three goes in the center. And then for the last one, you can see there's four cupcakes on the top, three cupcakes on the bottom. Four minus three is one. So one should be going in that question mark. Good job, everyone. Okay. So here, another question. How many matchsticks do you need to build eight squares like this? They give you the shapes here. Yeah, so they ask how many in total you need to build eight squares. So you can draw all the eight squares out and then you count all of them. But if you could use pattern, that would be easier. That's more efficient way to solve the problem. This question should be the five-point question in the competition, yeah. Once you figure out the pattern, it would not be very hard, but if it involves a bigger calculation, I know for some first-grade students, it would be a little difficult. Please pay attention and when you click the answer, you cannot correct your answer once you submit. Okay, we can share the result. Yeah, so most of you pick the correct answer. Good job. Yeah, this is a powerful question. So I think you are really good at the patterns. Yeah, good job. So let's see here. Yeah. So here, what they ask for, they ask eight squares. Like I mentioned before, you can draw the picture to draw all the eight squares and count all the sticks. Yeah. But if they ask you, if 100 square, can you draw 100 squares? There's no way, yeah? So you would have spent a lot of time. So this is not a correct way to solve the problem. So that's why we want you to use the pattern. And then this is a more efficient way after you solve the problem. For the pattern, you would identify. The first pattern, you would have four matchsticks to make the square. But from the second square, you would see they would borrow one from the previous one. They share one. They share the one in the middle. Yeah. So the second square would only need three more. And for the next one, you would still need three more. So every square after the first one, you only need three because you share one with the previous square. So this is a pattern you could figure out. So except for the first one, you need four. And the rest of them, you need three. You can add seven threes together or you can use multiplication. Use three times seven, get 21. And a plus four, 25. Good job, everyone. Yeah. Somebody use the multiplication. So I recommend you, you can remember the times table up to 10. That would be super helpful. Not only for the math group computation, also for your school math work or other math classes. Remember the times table, please. Okay. Here. Yeah. Here is a wrap up. Yeah. So we experienced some questions from easy to hard. You could have some ideas about the patterns and we recommend you to try some of the test. The test is available online for purchase. It's not very expensive. So yeah, you can just try to maybe get books or maybe get a single test and try to practice. Yeah. So here we want to see the patterns is everywhere. You're surrounded by patterns. You can try to find the new patterns around you. Yeah. Sometimes you can identify the patterns. So like you play some games with your friends and you both can check what's patterns around you. Yeah. And also when you try to solve the pattern problem, first to try to identify what a pattern would that be. Yeah. And also you'll take notes or join pictures as you imagine, you know, the different steps. Yeah. So please just not just try to imagine your mind. We strongly recommend you to draw it out, write down. Yeah. You try to predict what next steps. Yeah. So that's pattern could help you. So here, yeah. So we will ask you when you create your own problem with patterns, what type of pattern would you like to use? Yeah. So please share in the chat. So we give you half minute to share what type of pattern you would like to create. Yeah. Yeah. Put it in the chat. Yeah. If you want. Yeah. We would see what a pattern you like. Yeah. Remember we learned we have a growing pattern, repeating pattern, shrinking pattern, alternating pattern. Yeah. So those different type of symmetry pattern. Yeah. Word pattern. Good job. Somebody like a word pattern. Yeah. Or maybe number pattern, maybe shape pattern, maybe color pattern. Yeah. So anything. Yeah. You can create. Yeah. So here there is a bonus question. So this is a five point question. Yeah. So Elita, please read this question. So a certain kangaroo makes 10 jumps in one minute and rest three minutes. Then he again makes 10 jumps in one minute and rest for three minutes and so on. What is the least amount of minutes that he needs to make 30 jumps? Okay. So I will launch the poll for that. Yeah. So this is a harder question. Yeah. Yeah. Thank you for sharing. Thank you for those students who share what type of the pattern question you would like to create. Thank you for sharing. Some students still want to share what pattern question you would like to create. It's good to learn. Yeah, very nice. I like your questions. Thank you for sharing. okay we can share the answer yeah okay yeah so um i think some of you guys might have been a little bit tricked by this question yeah um the correct answer was actually b but a lot of people chose c and i think i know why okay yeah let's see how it happens so let's um just do it the simplest way first so if we start with one minute then it's 10 jumps and then three minutes to rest one minute to make another 10 jumps three minutes to rest again and then one minute to make another 10 jumps so if you add that up that is just nine minutes but a lot of you guys chose 12 minutes i think because you just did one minute jumping and three minutes resting as a group and multiplied that by three because he needs to make 30 jumps but really we don't need the three minutes of rest at the end because it just asks for the time he needs to make 30 jumps so he doesn't need the three minutes of rest at the end which makes it just nine minutes in total so at least the amount of time to make 30 jumps once you finish the 30 jumps you should stop the pattern should stop you cannot continue a pattern so this is a tricky part yeah so if you choose a c so that's really understandable yeah but pay attention when you should stop the pattern this is very important okay so it looks like our class is over but before we leave we would like to share one more thing with you some of you might not know this one what this pattern would be who knows yeah you can you can uh send in the chat if you know the name of this pattern yeah this is a complicated pattern it's a high level pattern yeah for the first grader or second grader it would be maybe really hard and you never heard about it before very famous that's very famous yeah but yeah yeah somebody said spiral very nice good job yeah so what's a real name for this one it's really spiral yeah so oh good job good job somebody gave the answer yeah okay yeah good job you sent yeah so that's a Fibonacci pattern yeah you know that yeah okay so this is a very famous pattern yeah okay you know what's the rule here yeah what's the rule for the Fibonacci pattern yeah so what's the rule so it's a two previous number you add together you get the third number so like this one you start with one and you plus one and you get get get three get two yeah so the the pattern number would be one one two three five eight thirteen and you could see two previous number add together would make make the next number so this is pattern so i shared this one with you just let you know that there are so many type of patterns something you never even heard about that so when you grow up you will learn more and more and more complicated pattern so you would know pattern is really helpful for you so please try to learn as much as you can on patterns yeah so you want to see some patterns super easy but some pattern may be very hard yeah so one more one more question ask you do you know when is a Fibonacci day anybody knows when is a Fibonacci day i don't think i even know what that is okay which day is a Fibonacci day like we have a pi day yeah march 14th that's pi day do you know when it's a Fibonacci day anybody knows good job okay it's a nishant again yeah good job it's a november 23rd that's a Fibonacci day that's a Fibonacci day okay so it's really interesting yeah so last year we had a teacher workshop it happened on november 23rd so that's a Fibonacci day yeah when we set up the date we didn't notice that day would be the Fibonacci day until the day we figure out oh that's that's very good yeah to know yeah so remember november 23rd this year you can celebrate Fibonacci day okay good job everyone thank you for joining today's session and after the class we will share with you the recording shortly after um also we would like to see you back next week thank you elita thank you everyone have a wonderful day bye bye all right thank you everybody bye
Video Summary
The MassCan Group webinar session focused on advanced patterns suitable for students who have completed the initial set A lessons. Lucia introduced the webinar, emphasizing that understanding the foundational set A lessons first is beneficial before tackling the complexities of set B. Elita Yu, the teaching assistant, helped guide students through the session.<br /><br />This session focused on various types of patterns such as repeating, growing, alternating, symmetrical, block arrangements, and alphabetical word patterns. Techniques for identifying these patterns and solving related mathematical problems were discussed.<br /><br />Multiple-choice questions from past MassCan competition tests were used to help students recognize and solve pattern-based problems. The importance of double-checking answers, as sometimes similar answer options can be confusing, was emphasized. Strategies like drawing out problems, especially in visual pattern questions, were highlighted as effective methods for finding solutions.<br /><br />Students were encouraged to practice these pattern recognition skills in real-life scenarios and in preparation for competitions. As a challenge, participants were exposed to a Fibonacci sequence and were informed about the Fibonacci day, adding an element of real-world mathematical trivia to the session.<br /><br />Overall, the session aimed at enhancing critical thinking and problem-solving skills through pattern recognition, essential for excelling in future math competitions like MassCan.
Keywords
MassCan Group
webinar
advanced patterns
set A lessons
set B complexities
pattern recognition
mathematical problems
Fibonacci sequence
math competitions
critical thinking
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