Math Teachers ~ You'll LOVE this Triangles Sum of Angle Measures in a Triangle Smartboard Slides Lesson that teaches EVERYTHING your students need to know about the sum of angle measures in a triangle, and how to find the degrees of a missing angle in a Triangle. Super vocabulary, teaching examples, questioning, practice problems, word problems, drawings, and real world problems. You'll love using this Smartboard lesson year after year! I also have this exact product for sale in Powerpoint (in