This volume focuses on the skills and concepts needed to fluently add and subtract within 5, 10, and 20. More specifically, the collection of resources offered in this volume can be used to provide intervention for students who are struggling with one of more of the following: Representing addition and subtraction with objects, drawings, verbal explanations, expressions, and equations Structuring 5 and 10 Counting on to add and counting back to subtract Developing and using strategies (other than counting on and counting back) to add and subtract within 5, 10, or 20 Fluently adding and subtracting with sums and minuends to 5, 10, or 20 Understanding and applying the commutative and associative properties of addition Solving subtraction by finding an unknown addend Solving for the unknown in addition and subtraction equations. For professional preview only.

Professional