Lesson objective: Use objects and drawings to solve real-world addition and subtraction problems.

This lesson provides an opportunity for students to apply their knowledge and understanding of addition and subtraction to a real-life situation. Students are asked to use drawings and objects to solve addition as "add to" situations.

Key Concept students will use:

- Addition and subtraction can be used to solve real-world problems.

Skills students will use:

- Counting groups of objects (Kindergarten, Unit 2)
- Adding numbers to 10
- Subtracting numbers to 10

Students engage in Mathematical Practice 4 (Model with mathematics) as they use drawings and objects to solve addition and subtraction problems.

**Key vocabulary: **

- add to
- addition
- equation
- total

**Special materials needed:**

- manipulatives, such as two-sided counters