My 4th grade math students have a learning gap in division. On a division pre-test, 85% of my fourth grade math students did not master basic division facts. NUMBER SENSE AND NUMBER THEORY: In order to develop Number Sense and an understanding of Number Theory, the mathematics curriculum must include problems which require students to recognize, represent, and model real numbers and operations verbally, physically, symbolically, and graphically. This unit was chosen to provide students with several ways to approach division. Students will learn more than one way and choose the way that best fits their own needs. This unit was chosen for 4th grade math students under the 3-5 cluster of Number Sense and Number Theory. This lesson provides students with the opportunity to think about the skills they use best and apply them to division.