By the end of this lesson, the students should be able to use a protractor to measure angles to the nearest degree and use angle measurement to justify and prove that an angle is acute, right, obtuse, or straight. This lesson plan includes objectives, essential questions, standards, evaluation methods, materials needed, and the procedural steps for the attention getter, summary directive, group instruction/demonstration, guided practice, independent practice, assessment, and closure. This lesson plan includes several hands on activities that are engaging and provide several visual aide ideas so that the students can master the skill of measuring angles.