Lesson objective: Add numbers with sums to 10.

This lesson helps to build procedural skill with whole number addition. Modeling addition with objects and drawings is used here because it supports students' understanding of the part-part-whole relationship. This work develops students' understanding that there is more than one pair of addends that can be combined to make a total.

Students engage in Mathematical Practice 6 (Attend to precision) as they solve addition problems using drawings and numbers.

**Key vocabulary:**

- addition
- part
- total

**Special materials needed:**

- number cubes with dots (0 - 5)
- recording sheet (optional)