E – M – RT7

Julio told his teacher that there are four possible arrays for an area of 36 cm². Is the student correct? How do you know?

E – I – ID6

Some students use the school bus to go to and from school, while others walk or bike. There are fluctuations from day-to-day. How can we monitor these fluctuations without using larger numbers.

P – EC – RT4

You are asked by your teacher to estimate how many books all of your classmates could fit into their backpacks. How would you determine a referent? What would your estimate be? Explain your thinking.

P – EC – RT5

You and your class are on a nature walk. You become interested in something you notice and make an estimate. This estimate is a large number. What could you have noticed that would make sense for such a large estimate? Explain your...

P – EC – RT6

You and your class are on a nature walk. You become interested in something you notice and make an estimate. This estimate is a large number. What size of referent would have made sense? Explain your thinking.

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