3. Use equivalent fractions to solve problems (A)
About this lesson
Lesson objective: Solve problems using equivalent fractions.
This lesson provides an opportunity for students to apply their knowledge and understanding of equivalent fractions to a reallife situation. Students are asked to evaluate the results from a frogjumping contest to determine which frogs jumped the same distance.
Key Concept students will use:

Equivalent fractions have the same value. They name the same amount of area of the same whole, and they are in the same position on the number line.
Skills students will use:
 Use a fraction to name a location on a number line. (Grade 3, Unit 4)
 Partition a number line to represent fractions. (Grade 3, Unit 4)
 Use equivalent fractions to describe the same location on a number line.
Students engage in Mathematical Practice 4 (model with mathematics) as they represent fractions as numbers on a number line. Students partition the number line, locate fractions on the number line, and write equations to show the equivalence of fractions.
Key vocabulary:
 number line
 partition
 point
 unit fraction
Special materials needed:
 copies of samesized number lines for students to partition (optional)