CCSS: 6.RP.3, 7.RP.3

Georgia’s K-12 Mathematics Standards: 6.NR.4, 7.PAR.4

Act 1

Ask students:

• What do you notice?  Record student responses.
• What do you wonder?  Record student curiosities and wonders.

Focus question(s): How big will the frog made with the white paper be?

Ask students to:

• Write down an estimate that is too high.
• Write down an estimate that is too low.
• Write down a best guess estimate.
• Mark each estimate on an empty number line.

Act 2

Ask students what information/tools they need to answer their question.  Give them their information as they ask for it.

How big are both pieces of paper? How big is the green frog?

Act 3

Share your solution and strategies.  Compare your strategies and results.

Watch the Act 3 Reveal, then discuss using the questions that follow.

• How reasonable were your estimates?
• Why do you think there were different solutions for the length of the frog made with the white paper?
• What might you do differently next time?
• What did you do well during this task?

The Sequel

Act 1

Ask students:

• What do you notice?  Record student responses.
• What do you wonder?  Record student curiosities and wonders.

Focus question(s): How big will the frog made with the yellow paper be?

Ask students to:

• Write down an estimate that is too high.
• Write down an estimate that is too low.
• Write down a best guess estimate.
• Mark each estimate on an empty number line.

Act 2

Ask students what information/tools they need to answer their question.  Give them their information as they ask for it.

How big is the yellow piece of paper? Students may also ask for information from the original problem above.

Act 3

Share your solution and strategies.  Compare your strategies and results.

Watch the Act 3 Reveal, then discuss using the questions that follow.

A follow-up investigation involves measuring the jumps of different sized origami frogs. The lesson can be found here.