Lesson 4: Going Further With Comparing Fractions

Getting Started

Questions to Explore

  • How can we compare fractions?

Facts and Definitions

  • If you want to compare two fractions with different denominators, you can find a multiple that both denominators share, create equivalent fractions using the shared denominators, and then compare those fractions.

Skills

  • Compare two fractions with different numerators and different denominators

Materials

  • index cards (kit)
  • Interactive Notebook (kit)
  • laminated fraction chart (kit)

Introduction

Using the index cards from the previous lesson's conclusion, tell your child to place them in a stack facedown. She will then turn one card over at a time and then name a fraction that is less than the one showing or a fraction that is greater than the one showing. For example, if she draws 3/4, she might say that 1/4 is less than 3/4. If she draws 1/2, she might say that 4/5 is greater than 1/2. Ask her to repeat this process four times, and allow her to use the laminated fraction chart as needed. (You can also use this chart to check her answers.)

Next, remind your child that she knows how to make equivalent fractions. Write 1/3 on the whiteboard, and ask her to write 2 fractions that are equivalent to it (for example, 2/6 and 3/9).

Now, provide time for your child to read the information in "The Same Denominator Method" section at the following web link. Scroll down to find this section. Explain to your child that he is going to be using this method to compare fractions during this lesson.
Web Link