P – EC – ID1
Our school is raising money for the local food bank. Students and staff want to have a successful yard sale. The principal is looking for help in planning the sale. Specifically, the principal is wondering how many items would be best and how to organize the yard...P – EC – WP12
Students were asked to estimate how many cars drove by the school during lunch. Marsha said her estimate was 20. She used 5 as a referent, and skip counted by five 4 times. Sammy said that five cars went by during the first 5 minutes of lunch and there were 20 minutes...P – EC – OE14
What could you be estimating if your referent is 10?P – EC – WP13
Two children were looking at stars in the sky. To estimate the number of stars in the sky, one child said she would use a referent of 5 while the other child said she would use a referent of 50. Which referent would be more suitable for estimating stars in the sky?...Page 5 of 334