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Array Race

Lesson: Array Race
Goals: develop facility with multiplicative arrays, multiplication facts, and the concept of area.
Grade level: 3-4
Materials:
Grid Paper (at least 20 x 25 boxes)
Two 9 (or more) sided dice
Colored Pencils

Procedure:

1. First player rolls two dice.

2. Numbers rolled are used as sides of a rectangle (multiplicative array), which is drawn on the grid paper.

3. After array is drawn, rectangle is colored in with a chosen color, and the multiplication sentence is written inside the array in pen.

For example, if the player rolls a 3 and 9, a 3x 9 rectangle is drawn.

3 X 9 array

4. Second player rolls the two dice and draws their array on same grid paper.

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