One of the best ways to teach students geometry vocabulary is to simply look around our environment. For example, if you want students to understand parallel lines, pair them up and hand them an individual white board and take a stroll around the school. Have them write down all the parallel lines they see. Here are two examples of parallel lines in our environment. Check out all the parallel lines in the door, the windows, the bookshelf, even the light switch. And it’s important to get kids to see parallel lines in non-rectangular objects, as well, such as the stop sign.

CCSS: 4.G.1; 4.G.2