Your device is currently offline. You can view downloaded files in My Downloads.

Lesson Plan

Measure angles by exploring the properties of protractors

teaches Common Core State Standards CCSS.Math.Content.4.MD.C.6
teaches Common Core State Standards CCSS.Math.Practice.MP1
teaches Common Core State Standards CCSS.Math.Practice.MP5
teaches Common Core State Standards CCSS.Math.Practice.MP6

You have saved this lesson!

Here's where you can access your saved items.


Card of

or to view additional materials

You'll gain access to interventions, extensions, task implementation guides, and more for this lesson.

Big Ideas: Angles are measured using a tool called a protractor. A protractor can measure the arc of an angle using units called degrees. Building on previous knowledge of the properties of angles, this lesson introduces the protractor as a tool to measure angles and degrees as the standard unit of angle measurement. Students have discovered the need for standard form measurement when working with angles and will explore the various ways to measure geometric figures. This lesson will prepare students for measuring and sketching angles using protractors. Vocabulary: protractor, degree, arc Special Materials: rulers, protractors
Provide feedback