Modeling lines and angles using toothpicks. Students describe each in an index card glued to the back ----- I've done this for years. Using chalk on black paper or gluing yarn instead of toothpicks.

Math Game: Hands on coordinate planes. Students toss two dice, form a coordinate pair and place a marker on that intersection. Students alternate turns, each trying to be the first to get four markers in a row horizontally, vertically or diagonally.

Math meets Art: Symmetry Self-Portraits. Showing students how symmetrical they are! Have students cut out picture of themselves and then cut in half. Students are then able to draw the other half.

Could easily do this on the board where each student has to come up and put a fraction in each column. Shut the Door and Teach: Using What We Know about Fractions Equivalent to One Half