- A letter stands for a number
- Writing 3n and n/4
- Terms, coefficients and constants
- Naming expressions and factors
- Key words and one operation
- Order matters for − and ÷
- Two operations and parentheses
- From an expression back to words
- What the letter stands for
- Writing the expression
- What each part means
- Before this
- Nothing. Start any time.
- Opens up