standard: 1.NBT.1, 1.NBT.4

Act 1

Watch the video:

What do you notice? What do you wonder?

Cookies left in the tray

• How many cookies did the Cookie Monster eat??  Estimate.
• Write an estimate you know is too high.  Write an estimate you know is too low.

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Act 2

How many cookies came in the package? (difficult)

How many cookies came in the package? (modification)

How many cookies were left in the package?

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Act 3

the number of cookies the Cookie Monster ate

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Modified Cookie Monster task created by Jamie Duncan (addition through 10)

 Click the link here to find more 3-Act Lessons