Combine Two Trains
Second graders investigate the concept of addition by combining numerical values. They use trains filled with blocks in order to complete the problem. The answer is then written on a third train with all the blocks included.
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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
Round to the Nearest Hundred Using Base Ten Blocks
Base ten blocks form the basis of understanding in this lesson on rounding to the nearest 100. A review of place value and finding midpoints on a number chart precedes two examples of rounding a three-digit number. This is the seventh in...
4 mins 2nd - 4th Math CCSS: Designed