You can check out these websites to review concepts you learned in earlier math classes.
Virtual Nerd has video tutorials available for topics ranging from Middle School Math to Algebra 2
Khan Academy Lessons that will be helpful to review for the first unit.
Equations of lines in slope intercept form y=mx+b
http://www.khanacademy.org/math/algebra/ck12-algebra-1/v/linear-equations-in-slope-intercept-form
Figuring out Slope of a Line
http://www.khanacademy.org/math/algebra/ck12-algebra-1/v/slope-and-rate-of-change
http://www.khanacademy.org/math/algebra/linear-equations-and-inequalitie/v/algebra--slope
Linear Equations in Point Slope Form
http://www.khanacademy.org/math/algebra/ck12-algebra-1/v/linear-equations-in-point-slope-form
Determining the equation of a line
Graphing Equations of a line
http://www.khanacademy.org/math/algebra/linear-equations-and-inequalitie/v/algebra--graphing-lines-1
Linear equations in standard form
http://www.khanacademy.org/math/algebra/ck12-algebra-1/v/linear-equations-in-standard-form
Equations of Parallel andPerpendicular Lines
Solving One-Step Equations
http://www.khanacademy.org/math/algebra/ck12-algebra-1/v/one-step-equations
Solving Two Step Equations
http://www.khanacademy.org/math/algebra/ck12-algebra-1/v/two-step-equations
Solving Multi-Step Equations
http://www.khanacademy.org/math/algebra/ck12-algebra-1/v/multi-step-equations
Solving with variables on bothsides
http://www.khanacademy.org/math/algebra/ck12-algebra-1/v/equations-with-variables-on-both-sides
Ratio and Proportion
http://www.khanacademy.org/math/algebra/ck12-algebra-1/v/ratio-and-proportion
Percent problems
http://www.khanacademy.org/math/algebra/ck12-algebra-1/v/percent-problems
Exponents
http://www.khanacademy.org/math/algebra/ck12-algebra-1/v/zero--negative--and-fractional-exponents
Setting up proportions
http://www.khanacademy.org/math/algebra/solving-linear-equations/v/writing-proportions
Solving proportions
http://www.khanacademy.org/math/algebra/ratios-proportions/v/solving-rational-equations-1
Khan academy Ratios and Proportions – extensive examples
http://www.khanacademy.org/math/algebra/#ratios-proportions
Khan Academy Basic ratios and proportions
http://www.khanacademy.org/math/arithmetic/#basic-ratios-proportions
Solving for one variable (solve for x and it’s the onlyvariable)
http://www.khanacademy.org/math/algebra/solving-linear-equations/v/solving-for-a-variable
http://www.khanacademy.org/math/algebra/solving-linear-equations/v/example-of-solving-for-a-variable
Solving linear equations: pick the part you are having trouble with. Examples of word problemsalso.
http://www.khanacademy.org/math/algebra/#solving-linear-equations
Taking percentages
http://www.khanacademy.org/math/algebra/solving-linear-equations/v/taking-percentages