**Chapter 15- Model Multiplication and Division**

**Summary**

**15-1 Multiplication Stories:** I can model and create multiplication stories.

**Vocabulary:** Multiplication: to find the product.

**15-2 Equal Groups:** I can model skip counting to find the total in equal groups.

**Vocabulary:** Equal groups: each group has the same number of objects.

**15-3 PSS: Draw a Picture:** I can use *draw a picture* as a strategy to solve problems.

**15-4 Repeated Addition:** I can add and multiply equal groups.

**Vocabulary:** Multiplication sentence: a math sentence that has the time sign in it.

**15-5 Arrays:** I can use arrays to multiply.

Arrays: pictorial representation of multiplication.

**15-6 Division Stories:** I can model and create division stories.

Division: to separate into equal groups.

**15-7 Find Equal Groups:** I can divide to make equal groups.

Division sentence: a math sentence that has the division sign in it.

**15-8 PSS: Choose a Strategy: ** I can choose the best strategy to solve problems.