Fractions Task 1

Fractions Task 1

Task 1: Estimate the answer to 12/13+ 7/8. You will not have time to solve the problem using paper and pencil.

A) 1

B) 2

C) 19

D) 21

Discussion Questions:

  • How did you solve the problem, and how might students solve the problem?
  • What insights into fractions make quick work of solving this problem?
  • Discuss why students chose each of the responses shown. Why do so many students find this problem difficult?
Task 1 Student Solutions

Answer Options

Percent of Age 13 Students
Who Chose Answer

1

7%

2

24%

19

28%

21

27%

I don’t know

14%

Post, T. R. (1981, May). Fractions: Results and implications from National Assessment.  The Arithmetic Teacher.