Khan Academy

Zero factorial or 0! (K-A)

Example: Combinatorics and probability (K-A)

Addition rule for probability (K-A)

Example: Different ways to pick officers (K-A)

Example: Lottery probability (K-A)

Probability with Venn diagrams (K-A)

Generalizing with binomial coefficients (bit advanced) (K-A)

Getting exactly two heads (combinatorics) (K-A)

Mega millions jackpot probability (K-A)

Probability & combinations (2 of 2) (K-A)

Probability using combinations (K-A)

Probability with counting outcomes-vidoe (K-A)

Adding and subtracting polynomials with two variables review (K-A)

Adding polynomials: two variables (intro) (K-A)

Finding an error in polynomial subtraction (K-A)

Polynomials review (K-A)

Subtracting polynomials: two variables (intro) (K-A)

Subtracting polynomials: two variables (K-A)

Divide polynomials by monomials (with remainders) (K-A)

Dividing polynomials with remainders (K-A)

Interpreting equations graphically (example 2) (K-A)

Interpreting equations graphically (K-A)

Solving equations graphically (1 of 2) (K-A)

Solving equations graphically (2 of 2) (K-A)

Binomial expansion & combinatorics (K-A)