P – EC – PP16
What would you use as a reference to estimate the number of books in the pile?P – EC – PP17
Would a better referent be 10 or 25 for estimating the number of books in the pile?P – EC – PP18
Would your estimate of books in the pile be more or less than 100?P – EC – PP19
Would your estimate of books in the pile be more or less than 120?Page 24 of 27