Khan Academy - Math, Science & Humanities Video Tutorials & Exercises
Over 1,800 10 minute online tutorials in all aspects of math from arithmetic through algebra, geometry, trigonometry, calculus and advanced linear algebra to statistics, finance, biology, chemistry, physics, and test preparation. Exercises are being added and the ability to plot individual progress - ALL FREE, and being translated into many languages.
Addition & Subtraction; Algebra; Art & Music; Biology; Calculus; Chemistry; Consumer Math/Finance; Economics; Fractions & Decimals; Geometric Measurement; Geometry; History/Global Studies; Medical Sciences; Measurement Systems & Conversions; Multiplication & Division; Numeric Place Value; Factors; Physics; Probability and Statistics; Rational & Irrational Numbers; Ratios, Proportions & Percents; Trigonometry
algebra; banking; biology; chemistry; distance education; economics; examinations; finances; games; geometry; investment; mathematical applications; money; organic chemistry; physics; probability; puzzles; skill development; statistics; study groups; study skills; test anxiety; testing; tests; trigonometry
Internet Resources; Videos
Instruction: Teaching Tools; Learning: Student Activities
Teacher / Faculty, Student / Learner, Parent / Informal Education