FIRST GRADE - Telling Time- stick a hula hoop to the white board, and write numbers around the inside of the circle to make a "clock". You can make little notches around the inside of the hula hoop to practice telling time to the exact time.
Lego Fraction game: Love this example for students who are into Legos. This is a great way for students to learn commonly used fractions in an exciting way. It supports the NCTM standard of representing commonly used fractions.