3 Act: Sealed With __ Hearts

My son was working on his Valentines tonight and said, “how am I supposed to get these hearts to stick?  There are supposed to be 3 on each one.”  I said, “you are probably only supposed to put one on each” and he said “no there are 48 hearts and 16 cards so there are exactly enough for 3 on each.”

Well, that got my brain going when I looked at that perfect little array on the sticker sheet and I jumped up to film:)

Best Fit CCSS Standard(s) 4.OA.A.2, 5.NBT.B.6

Act 1:

What do you notice?  What do you wonder?

How many heart stickers will there be on each Valentine?

Estimate.  Give a too high and a too low answer.

Act 2:

What information do you need to solve the problem?

Choose the image you prefer for this part of the task.


Act 3:

Were you correct?



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