## Chapter 1

### Lesson Introduction Videos

**Lesson 1 - **Place Value and Patterns

**Essential Idea:** How can you describe the relationship between two place-value positions?

**Lesson 2 - **Place Value of Whole Numbers

**Essential Idea: **How do you read, write, and represent whole numbers through hundred millions?

**Lesson 3 - **Properties

**Essential Idea:** How can you use properties of operations to solve problems?

**Lesson 4 - **Powers of 10 and Exponents

**Essential Idea:** How can you use an exponent to show powers of 10?

**Lesson 5 - **Multiplication Patterns

**Essential Idea:** How can you use a basic fact and a pattern to multiply by a 2-digit number?

**Lesson 6 - **Multiply by 1-Digit Numbers

**Essential Idea:** How do you multiply by 1-digit numbers?

**Lesson 7 - **Multiply by Multi-Digit Numbers

**Essential Idea:** How do you multiply bu multi-digit numbers?

**Lesson 8 - **Relate Multiplication to Division

**Essential Idea:** How is multiplication used to solve a division problems?

**Lesson 9 - **Problem Solving - Multiplication and Division

**Essential Idea:** How can you use the strategy *solve a simpler problem* to help you solve a division problem?

**Lesson 10 - **Numerical Expressions

**Essential Idea:** How can you use a numerical expression to describe a situation?

**Lesson 11 - **Evaluate Numerical Expressions

**Essential Idea:** In what order must operations be evaluated to find the solution to a problem?

**Lesson 12 - **Grouping Symbols

**Essential Idea:** In what order must operations be evaluated to find a solution when there are parentheses within parentheses?