Lesson plan

Sketch an angle opening that is a multiple of ten using a protractor

teaches Common Core State Standards CCSS.Math.Content.4.MD.C.6 http://corestandards.org/Math/Content/4/MD/C/6
teaches Common Core State Standards CCSS.Math.Practice.MP1 http://corestandards.org/Math/Practice/MP1
teaches Common Core State Standards CCSS.Math.Practice.MP5 http://corestandards.org/Math/Practice/MP5
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6

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Big Ideas: Protractors can be used to draw specific angles. This lesson continues to build on the skills and mathematical process of using a protractor, while introducing the concept of sketching angles to specific degrees that are multiples of ten. Students will work to make sense of a problem and persevere in solving it as they gain experience sketching angles with a protractor. The foundation built in this lesson will prepare students to sketch angles to precise degree measurement. Vocabulary: protractor, arc, degree Special Materials: protractor, straightedge optional