4.NF.A.2 Compare Fractions Unlike Numerator and Denominator
4.NF.A.3 Compare Fractions Different Numerators and Denominators
Evidence Statement 4.C.5-3 Distinguish correct explanation/reasoning from that which is flawed, and – if there is a flaw in the argument – present corrected reasoning. (For example, some flawed ‘student’ reasoning is presented and the task is to correct and improve it.) Content Scope: Knowledge and skills articulated in 4.NF.2
Keisha's Work
Keisha is working to compare fractions. She stated that < because 8 is greater than 3 and the larger the denominator, the greater the fraction.
Keisha's reasoning is incorrect.
- Explain what is incorrect in Keish's reasoning.
- Write a correct comparison for andusing < , >, or =.
Enter your explanations and your correct comparison in the space provided.
Student Copy
Score | Description |
2 | Student response includes the following 2 elements. Reasoning Component = 1 points Valid explanation of Keisha's error (The denominator 8 is not greater than the denominator 3 because the larger the denominator the smaller the size of the parts) Modeling Component = 1 point The student provides a correct comparison, > |
1 | Student response includes 1 of the 2 elements. |
0 | Student response is incorrect or invalid. |
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