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Webinars SET B - Grade 7-8 - Sunday@3:15-4:15pm ES ...
Recording Webinar 3 - Number Theory
Recording Webinar 3 - Number Theory
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Video Transcription
Video Summary
In this webinar session on number theory, the instructor engages students with interactive fraction comparison questions and progressively complex problems involving integers, palindromic numbers, divisibility, exponents, roots, and properties of numbers. Key concepts reviewed include identifying the largest fraction by maximizing numerator and minimizing denominator, understanding number sets (counting numbers, integers, rational numbers), place value, and key properties such as the identity and zero properties, behavior of negatives, even-odd number interactions, and divisibility rules.<br /><br />The session discusses exponents extensively—covering product, quotient, power rules, zero and negative exponents, and fractional exponents with roots—emphasizing clear understanding over memorization.<br /><br />Participants solve problems collaboratively via chat, including identifying palindromic numbers and calculating the difference between the largest six-digit and smallest five-digit palindromic numbers, smallest two-digit numbers not expressible as sums of three different one-digit numbers, percentages related to odd integers in consecutive sequences, and properties relating squares and cubes of large powers.<br /><br />Challenging applications involve arranging stories of varying page lengths to maximize ones starting on odd pages, determining greatest values related to digit removal from multi-digit numbers, and relating exponents to counts of squares and cubes.<br /><br />Throughout, emphasis is placed on critical reading, problem-solving strategies, verifying solutions for logical consistency, and the importance of small calculation details. The competitive format with personalized points motivates engagement and reflects growing mastery. Instructors encourage questions and adaptive teamwork to deepen understanding of number theory in various contexts.
Keywords
number theory
fraction comparison
integers
palindromic numbers
divisibility rules
exponents and roots
number properties
problem-solving strategies
place value
interactive learning
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