 # Using a Protractor

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Lesson Plans and Worksheets for Grade 4
Lesson Plans and Worksheets for all Grades

Examples, solutions, and videos to help Grade 4 students learn how to use varied protractors to distinguish angle measure from length measurement.

Common Core Standards: 4.MD.5, 4.MD.6

### New York State Common Core Math Grade 4, Module 4, Lesson 6

How to use different types of protractors to measure angles? NYS Math Module 4 Grade 4 Lesson 6 Problem Set

1. Use a protractor to measure the angles and then record the measurements in degrees.

How to measure an obtuse angle? Use a protractor to draw a 27° angle NYS Math Module 4 Grade 4 Lesson 6 Homework

1. Use a protractor to measure the angles and then record the measurements in degrees.

2. Using the green and red circle cutouts from today’s lesson, explain to someone at home how the cutouts can be used to show that the angle measures are the same even though the circles are different sizes. Write words to explain what you told him/her.

3. Use a protractor to measure each angle. Extend the length of the lines if you need to. When you extend the lines, does the angle measure stay the same? Explain how you know.

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