# Unit 2: Equations and Expressions

This week we are beginning unit 2. Students will learn the following algebra vocabulary words:

- Algebraic expression
- Coefficient
- Constant
- Equation
- Inequality
- Term
- Numerical expression
- Variable

We will practice using the School Yourself website. Students will need to use their username and password from class.

1) What is a variable? (A number we don’t know) – Go to Algebra, then Solving Equations, and Solving for unknowns – or https://schoolyourself.org/learn/algebra/number-line-solve

2) How do we solve expressions? (Substitute a number for a variable) https://schoolyourself.org/learn/algebra/evaluate

3) What is a coefficient? (The number in front of a variable) https://schoolyourself.org/learn/algebra/coefficients

4) How do we simplify expressions? (Combine like terms) https://schoolyourself.org/learn/algebra/simplify