This is a "glow in the dark" smart lesson. Use neon colors for your smart pen and turn out all the lights in the classroom. This is a fun way to learn how to find the area of triangles. This lesson contains 10 examples using whole numbers, decimals, and some have 2 digit numbers for the base and height of the triangles. You can edit each page to use whatever numbers you would like to use. You could even edit this to have students find missing dimensions. Have fun! Your kids will love this because mine sure did!!!