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Adding Objects in Rectangular Arrays Independent Worksheet
After analyzing objects arranged in rectangular arrays, youngsters write addition sentences to describe each. Model this for the class before they start, as the idea isn't completely clear. Note the third question may throw some students...
1st - 3rd Math CCSS: Adaptable
Find the Area of a Rectangle by Partitioning it into Arrays of Same Size Squares
Tiling is a great method to use when introducing young mathematicians to the concept of area. In the second video of the series, this process is clearly modeled both by laying down unit squares in arrays and by drawing lines to create...
8 mins 2nd - 4th Math CCSS: Designed
Solve Multiplication Problems by Drawing an Array
Here's a great way to learn about the powerful multiplication strategy of using arrays. A review discusses multiplication in terms of repeated addition, grouping, and as arrays. Then, two examples illustrate how to figure out word...
4 mins 2nd - 4th Math CCSS: Designed
Understand the Commutative Property by Naming Arrays
An array acts as the vehicle for learning a powerful multiplication strategy–counting in patterns to multiply. With a step-by-step visual breakdown of multiple methods for counting a 4x2 array, learners see that there is more than one...
5 mins 2nd - 4th Math CCSS: Designed