Algebra 1 :

Algebra foundations
Substitution & evaluating expressions
Solving equations & inequalities

Working with units
Linear equations & graphs
Inequalities: Forms of linear equations
Systems of equations
Inequalities (systems & graphs)
Functions
Sequences
Absolute value & piecewise functions
Exponents & radicals
Exponential growth & decay
Quadratics: Multiplying & factoring
Quadratic functions & equations
Irrational numbers

Algebra 2 :

Polynomial arithmetic
Complex numbers

Polynomial factorization
Polynomial division
Polynomial graphs

College Algebra :

Rational exponents and radicals
Exponential models
Logarithms
Transformations of functions
Equations
Trigonometry
Modeling
Rational functions