P – EC – RT10
Terry and Reid estimated the number of people in line for concert tickets. Terry used a referents of 10 while Reid used a referent of 20. They estimated the same number of people. How is this possible if they used different...P – EC – RT11
Jamie, Matty and Reid estimated how many balloons were at the party. Jamie used a referent of 10, Matty used a referent of 25 and Reid didn’t use a referent. All three of their estimates were very close. How could their estimates have been so close if they all...P – EC – RT1
A group of students were learning about using referents when estimating. Some of these students argued that referents should be 10 while others argued that referents should be 100. When would be an appropriate time to use either referent? Explain your...P – EC – RT2
A group of students were learning about using referents when estimating. Some of these students argued that referents should be 10 while others argued that referents should be 100. Are there times when a referent of 10 and a referent of 100 would be helpful? Explain...Page 69 of 90