Video: Completing a Pattern by Observing the Pattern’s Rule

Complete the pattern.

01:08

Video Transcript

Complete the pattern.

First, we have to find the rule. The pattern begins with one pink square. Next, there are two pink squares, then three. What’s happening to the squares each time? One plus one makes two. Two plus one makes three. The rule of the pattern is to add one pink square each time. We also need to think about where to add the pink square, on top, at the bottom, to the left, to the right. We have to add one square here, to the right each time. So the rule of the pattern is to add one pink square to the right each time. So to complete the pattern, we need to add one square to the right. So we would complete the pattern using four pink squares.

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