Finding Unknown Angles PowerPoint Presentation 4.MD.7 serves as a detailed lesson on finding an unknown angle measurement. The lesson starts with a review of the definition of an angle and the different types of angles (acute, right, and obtuse). This PowerPoint covers examples of solving problems to find missing angle measurements. At the conclusion of the lesson, there is a quick thumbs up and thumbs down assessment that can be used to gauge their mastery of the learning target. Also, the final two slides have a couple of missing angle mystery word problems to further assess student learning. I hope you and your students enjoy learning about calculating missing angle measurements!
Relevant Grade 4 Common Core Standard 4.MD.C.7
Recognize angle measure as additive. When an angle is decomposed into non-overlapping parts, the angle measure of the whole is the sum of the angle measures of the parts. Solve addition and subtraction problems to find unknown angles on a diagram in real world and mathematical problems, e.g., by using an equation with a symbol for the unknown angle measure.
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