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 – RT7
Two students were estimating the number of people on the playground. One student used a referent of 5 while another student used a referent of 20. How could both referents be appropriate? Explain your thinking.P – EC – RT8
When estimating a large number of people, Janie asked people to gather into groups of 10. What would Janie’s reasoning be for asking people to group? Could she have grouped them in other ways?P – EC – RT9
Taylor and Sam estimated the number of people in line for hockey tickets. Both used referents of 20, but they had different estimates. How is this possible if they used the same referent?Page 1 of 334