My fifth grade students began math class today by doing some Geometry exercises. They loved it! We all stood and stretched our arms out side to side pointing in both directions and said LINE. Keeping our arms outstretched, we then clenched our fists and all said, LINE SEGMENT. Next we clenched one fist and pointed with the other hand and said, RAY. We continued these exercises by including and defining the terms; angle, right angle, acute angle, obtuse angle, parallel lines, and intersecting lines. The children take turns calling out the terms, while the others are called upon to do the exercise and define the term.