This is a 15 day unit to teach 3rd Grade Common Core Math Standard 3.OA.2 ,3.OA.3 and 3.OA.4- Division Strategies and Division and Multiplication Word Problems. For 3.OA.2, students will use repeated subtraction, subtract equal groups on a number line and draw pictures to solve division problems. For 3.OA.3 and 4, students will learn to solve word problems by drawing equal groups, drawing a bar model, solve measurement problems using a bar model and solving problems by drawing arrays. This un