Series: Common Core Challenge

Math.4.NF.A.1

Common core State Standards

  • Math:  Math
  • 4:  Grade 4
  • NF:  Number & Operations--Fractions
  • A:  Extend understanding of fraction equivalence and ordering
  • 1: 
    Explain why a fraction a/b is equivalent to a fraction (n × a)/(n × b) by using visual fraction models, with attention to how the number and size of the parts differ even though the two fractions themselves are the same size. Use this principle to recognize and generate equivalent fractions.


    Grade 4 expectations in this domain are limited to fractions with denominators 2, 3, 4, 5, 6, 8, 10, 12, 100.

Download Common Core State Standards (PDF 1.2 MB)

Understanding, Modeling and Creating Equivalent Fractions
Lesson Objective: Explain why two fractions are equivalent even though they use different numbers. Extend understanding of fraction equivalence and ordering.
Grade 4 / Math / Fractions
Math.4.NF.A.1

Thought starters

  1. What Core Action indicator(s) does this lesson best exemplify?
  2. How does this lesson connect to and build on students’ prior skills and knowledge?
13 Comments
Great ideas and linking knowledge.
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Thanks for giving some great ideas in how to teach fractions with CCSS.
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Great ideas, I am used to thinking of fractions with the "pizza" method. I think it will be great to integrate these rods into my lessons as well.
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Love the fraction towers anchor chart. We are starting fractions on Monday and I look forward to using many of these ideas and teaching tips in the lesson. Thank you!
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I really enjoyed this video. I loved the demonstration of using Cuisenaire Rods for teaching fractions. I have a set of my own, but haven't used them yet because I wasn't sure how to use them. I like and appreciate how this lesson has students exploring the meaning of why fractions are equivalent. I've emailed this video, workbook, and the SAP Instructional Practice Guide for Math to the 3rd to 5th grade teachers I work with in my district. I'm supposed to model a math lesson tomorrow in a 3rd, 4th, and 5th grade class, and until know I had no idea what I would do in each class, but I do know. This is a wonderful lesson I can do in each grade!
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