Use Benchmark Fractions to Assess the Reasonableness of Answers to Problems Involving Fractions

This Use Benchmark Fractions to Assess the Reasonableness of Answers to Problems Involving Fractions video also includes:

Benchmark fractions are helpful when using estimation to predict a solution. Learners are asked to take a fraction expression and use common fractions to estimate the final answer. The answer is also solved using algebra, and the idea of reasonableness determines that the answer is correct. 

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CCSS: Designed
Instructional Ideas

  • Use this lesson alongside the others in the series for more practice with fractions
Classroom Considerations

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Pros

  • Solves the problem with algebra and estimation side by side
  • Assign the video through Google Classroom
Cons

  • None
Common Core