Here is a great learning task that focuses on the development of areas in computational fluency including strategies in mental math. Young learners are guided through a list of addition expressions that help them visually understand the relationships between numbers within 20. By demonstrating these relationships on a number line, a child can easily develop mathematical strategies such as counting all, counting on, using relational thinking, as well as part-whole addition. A list of materials and actions makes the activity easy to implement in the classroom. It also has an answer key and commentary to support instruction.

Common Core

2.OA.B.2 MP1 MP5 MP7