CCSS: 4.MD.2, 6.RP.3, 7.RP.3

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

Ask students:

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

Focus question(s): How much will the big orange Cuisenaire rod weigh?

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.

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?
• What might you do differently next time?
• What did you do well during this task?