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Alexander, Who Used to Be Rich Last Sunday
Using money as a context for teaching basic arithmetic is an excellent strategy for engaging young mathematicians. Following along with a class reading of the children's book Alexander, Who Used to Be Rich last Sunday by Judith Viorst,...
1st - 3rd Math CCSS: Designed
Understanding Long Division: Whole Numbers
Smoothly transition your class into using the long division algorithm with this hands-on math lesson. Working in pairs, young mathematicians practice using base ten blocks or play money to model division by single-digit divisors....
2nd - 5th Math CCSS: Adaptable
Adding Objects in Rectangular Arrays - Step-by-Step Lesson
These aliens will be familiar to any mathematicians who have seen Toy Story! Use an array of them to practice addition and writing number sentences. Because this learning exercise includes the explanation to its one problem, project it...
1st - 2nd Math CCSS: Adaptable
Write and Test Equations with Two Equal Addends to Prove that the Sum will Always be Equal
Will the sum of two even numbers always be even? Discover the answer with the fourth video in this five-part series. Multiple examples are presented, using a combination of number sentences and visual models to help young mathematicians...
5 mins 1st - 3rd Math CCSS: Designed
Solve Addition Problems: Using Complements of 10
In a base ten number system, knowing the complements of ten is a huge help when learning addition with larger numbers. The third video is this series models how these special pairs of numbers can be used along with expanded notation to...
5 mins 2nd - 4th Math CCSS: Designed
Find the Area of a Rectangle By Multiplying Side Lengths
Why waste time counting up unit squares when the area of a rectangle can be found by simply multiplying the length and width? The third video in this series provides multiple examples and visual models that support young mathematicians...
7 mins 2nd - 4th Math CCSS: Designed