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 |
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.