1. Word Problems
2. Different kinds of equations
   1. Polynomials
      1. 1st Degree: Linear Equations
         1. Equations with two unknowns
      2. 2nd Degree: Quadratic Equations
   2. Equations with Rational expressions
   3. Others
      1. Leave for Alg II and Beyond
3. Graphing is a useful way to visualize and understand equations
4. Extend Number System: (negative numbers)
   1. Extend again to allow square roots of negative numbers
5. Extend Operations: (exponents and roots)
6. Algebraic Properties: (rules for manipulating expressions and equations)