Video: Equal Groups Models for Multiplication by 2, 5, or 10

Pick the shapes that are not in equal groups.

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Video Transcript

Pick the shapes that are not in equal groups.

Let’s look at the groups of circles. The first group contains two circles, so does the second and the third. These are equal groups. Each group contains the same number of circles. Now, let’s look at the three groups of green squares. Are these groups equal? Does each group have the same number of squares? The first group contains five squares. The second group contains four. And the third group contains five squares. These shapes are not in equal groups.

Are these groups of rectangles equal? The first group contains five rectangles, so does the second and the third. The shapes that are not in equal groups are the green squares. The first group has five squares. The second group has four. And the third group has five. The groups are not equal because each group has a different number of squares. The other two groups of shapes are in equal groups.

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