Students will learn how to convert English phrases to algebraic expressions and equations. These word problems should require the use of no more than two variables. Here's an example of converting to an expression. Examples of converting to equations, to solve missing number addition and multiplication problems, can be seen here, and here. Next, give your students this challenge. After that, give them this one. Finally, give them this one.

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:

Klingon Attack

by MathPickle

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