Lesson Plans SET A for Grades 7-8-Lesson 7 Level 7-8 Clocks and Calendars-Homework

Lesson 7 Level 7-8 Clocks and Calendars-Homework

Pdf Summary

The document provides a set of mathematical problems labeled as "Level 7-8 Set A" focusing on clocks and calendars. These problems are intended for practice in a Math Kangaroo class. The document includes five specific problems along with their answers:<br /><br />1. **Day of the Week in January**: The problem asks to determine the day of the week for January 31st of a year in which February has five Wednesdays. The answer provided is Tuesday.<br /><br />2. **Recurring Days in August**: Given that a certain year has more Mondays and Wednesdays in July, the task is to identify which days appear five times in August. The answer is Thursday, Friday, and Saturday.<br /><br />3. **Time Synchronization of Clocks**: This problem presents a scenario with two clocks - a fast clock gaining 3 minutes per hour and a slow clock losing 2 minutes per hour, both set correctly at noon on January 1st. The goal is to find when they will display the same time again. The answer is noon on January 7th.<br /><br />4. **Clock Angle Calculation**: The problem involves finding the acute angle between the hour and minute hands of a clock at 7:24. The acute angle is reported to be 78 degrees.<br /><br />5. **Cooking Time Optimization**: The task is to determine the least amount of time required to use two burners to cook five dishes with given cooking times (10, 15, 35, 40, and 45 minutes). The solution provided is 75 minutes.<br /><br />These problems challenge students to apply concepts related to days of the week, clock arithmetic, and time management strategies effectively.

Keywords

Math Kangaroo

Level 7-8

clocks

calendars

day of the week

time synchronization

clock angle

cooking time optimization

mathematical problems

practice