Students will learn how to identify terms, constant terms, factors, and coefficients in algebraic expressions. Here's a good demonstration. Students can practice this skill here. Conclude by giving your students this challenge.

I don't think the Khan Academy exercise Writing expressions with variables should be included. I can't imagine a situation where someone would describe these expressions in English instead of math. It's just as absurd as describing the Pythagorean theorem in English as *a squared plus b squared equals c squared.* Who would do such a thing?

Watch these Khan Academy videos:

- Intro to order of operations
- Order of operations examples: exponents
- Writing basic expressions with variables
- Order of operations example
- Worked example: Order of operations (PEMDAS)
- Order of operations example
- Evaluating expressions with two variables
- Terms, factors, & coefficients
- Expression value intuition
- Writing expressions with variables
- Evaluating an expression with one variable
- Evaluating expressions with variables: temperature
- Evaluating expressions with variables: cubes
- Evaluating expressions with variables: exponents
- Writing basic expressions word problems

Do these Khan Academy exercises:

- Order of operations
- Writing basic expressions with variables
- Order of operations challenge
- Evaluating expressions with multiple variables
- Parts of algebraic expressions
- Expression value intuition
- Writing expressions with variables
- Evaluating expressions with variables word problems
- Evaluating expressions with multiple variables: fractions & decimals
- Evaluating expressions with one variable
- Writing basic expressions word problems

Conclude by leading this investigation:

Spectral Blaster (symmetry, mini mathematical universe)

by MathPickle

6.EE.A.2: Write, read, and evaluate expressions in which letters stand for numbers.