Videos, examples, and solutions to help Grade 3 students learn how to place any fraction on a number line with endpoints 0 and 1.
Common Core Standards: 3.NF.2a, 3.NF.2b, 3.NF.3c, 3.NF.3d, 3.MD.4
New York State Common Core Math Grade 3, Module 5, Lesson 15
Grade 3, Module 5, Lesson 15 Worksheets
Lesson 15 Application Problem
In baseball, it is about 30 yards from home plate to first base. The batter got tagged out about half way to first base.
About how many yards from home plate was he when he got tagged out?
Draw a number line to show the point where he was when tagged out.
Lesson 15 Concept Development
Problem 1: Locate the point 2 thirds.
Given 2 thirds. How many equal parts in the whole? Three.
How many of those equal parts have been counted? Two.
Count up to 2 thirds by unit fractions. 1 third, 2 thirds.
Draw a 2-part number bond of 1 whole with one part as 2 thirds.
What is the missing part? 1 third.
Draw a number line with end points of 0 and 1, and with 0 thirds and 3 thirds, to match your number bond.
Problem 2: Locate the point 3 fifths.
Given 3 fifths. How many equal parts in the whole? Five.
How many of those equal parts have been counted? Three.
Count up to 3 fifths by unit fractions. 1 fifth, 2 fifths, 3 fifths.
Draw a 2-part number bond of 1 whole with one part as 3 fifths.
What is the missing part? 2 fifths.
Draw a number line with end points of 0 and 1, and with 0 fifths and 5 fifths, to match your number bond.
Lesson 15 Problem Set
Lesson 15 Homework
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