ADDITION AND SUBTRACTION TO 20: Unit 7 provides 18 days of learning in which the child explores addition and subtraction to 20. Using a variety of concrete and visual representations, the child models addition and subtraction, creates and solves problems, and records the process symbolically. The child learns to use mental math strategies such as counting on and counting back, making 10, doubles, and using addition to subtract.
** This is a Print-on-Demand product; it is non-returnable. |