P – EC – RT3

You and a friend are asked to estimate the number of attendees at your school’s graduation ceremony. If you were to estimate such a large crowd, how large would your referent be and how would you use it to estimate the number of...

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.

P – COA – RT6

Teacher wanted a question that would have a lot of possible responses. What could the question be and collect data for it from your classmates.

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