[Math Lessons from the Blackboard] 5th Grade "Even/Odd Numbers and Multiples/Divisors" #1-11: Perspectives on Numbers that Support Fraction Calculati…

Even numbers, odd numbers, multiples, and divisors learned in the 5th grade.This is a unit where new terms appear one after ...

Why is the "Ladder Method" not taught in elementary school? Thinking about the least common multiple and what we really want to teach in arithmetic

Problems finding the least common multiple.For example,"Let's find the least common multiple of 6 and 8."In elementary school ...