Lesson objective: Apply understanding of addition and subtraction situations to create story problems to describe a picture.

This lesson provides an opportunity for students to apply their knowledge and understanding of addition and subtraction situations to a real-life situation. Students are asked to create an addition or subtraction story problem to describe a picture and solve the problem using words, pictures, or equations.

Key Concept students will use:

- We can solve many kinds of problems using addition and subtraction.

Skills students will use:

- Understand how pictures are used to represent addition and subtraction situations.
- Connect pictures to equations.
- Create a story problem context from an equation with an unknown.

Students engage in Mathematical Practice 2 (reason abstractly and quantitatively) as they create a story problem from a picture. Students use a pictorial representation to create a matching equation and then draw upon their understanding of addition and subtraction situations to contextualize the equation. Students will then use words, pictures, or equations to solve the problem.

**Key vocabulary: **

- unknown
- addition
- subtraction