Khan Academy

Classifying numbers: rational & irrational (K-A)

Intro to rational & irrational numbers (K-A)

Proof: product of rational & irrational is irrational (K-A)

Proof: sum & product of two rationals is rational (K-A)

Proof: sum of rational & irrational is irrational (K-A)

Sums and products of irrational numbers (K-A)

Worked example: rational vs. irrational expressions (K-A)

Worked example: rational vs. irrational expressions (unknowns) (K-A)

Proof: √2 is irrational (K-A)

Proof: square roots of prime numbers are irrational (K-A)

Proof: there's an irrational number between any two rational numbers (K-A)

Exponential equation word problem (K-A)

Quadratic inequality word problem (K-A)

Rational equation word problem (K-A)

Manipulating formulas: area (K-A)

Manipulating formulas: perimeter (K-A)

Manipulating formulas: temperature (K-A)

Experimental probability (K-A)

Intro to theoretical probability (K-A)

Intuitive sense of probabilities (K-A)

Making predictions with probability (K-A)

Probability models example: frozen yogurt (K-A)

Probability: the basics (K-A)

Simple probability: non-blue marble (K-A)

Combination example: 9 card hands (K-A)