Videos

2003 AIME II Problem 6

2003 AIME II Problem 6

Area Circumradius Formula Proof

Area Circumradius Formula Proof

2003 AIME II Problem 8

2003 AIME II Problem 8

Sum of Polynomial Roots (Proof)

Sum of Polynomial Roots (Proof)

Sum of Squares of Polynomial Roots

Sum of Squares of Polynomial Roots

2003 AIME II Problem 9

2003 AIME II Problem 9

2003 AIME II Problem 12

2003 AIME II Problem 12

2003 AIME II Problem 13

2003 AIME II Problem 13

2003 AIME II Problem 10

2003 AIME II Problem 10

2003 AIME II Problem 11.avi

2003 AIME II Problem 11.avi

2003 AIME II Problem 14

2003 AIME II Problem 14

2003 AIME II Problem 15 (part 1)

2003 AIME II Problem 15 (part 1)

2003 AIME II Problem 15 (part 2)

2003 AIME II Problem 15 (part 2)

2003 AIME II Problem 15 (part 3)

2003 AIME II Problem 15 (part 3)

Algebra: Linear Equations 2

Algebra: Linear Equations 2

Algebra: Linear Equations 3

Algebra: Linear Equations 3

Ordering Numeric Expressions

Ordering Numeric Expressions

Ordering numeric expressions

Ordering numeric expressions

Probability (part 1)

Probability (part 1)

Introduction to Evolution and Natural Selection

Introduction to Evolution and Natural Se...

Ape Clarification

Ape Clarification

Intelligent Design and Evolution

Intelligent Design and Evolution

Evolution Clarification

Evolution Clarification

Natural Selection and the Owl Butterfly

Natural Selection and the Owl Butterfly

DNA

Variation in a Species

Variation in a Species

Chromosomes, Chromatids, Chromatin, etc.

Chromosomes, Chromatids, Chromatin, etc.

Mitosis, Meiosis and Sexual Reproduction

Mitosis, Meiosis and Sexual Reproduction

Phases of Mitosis

Phases of Mitosis

Phases of Meiosis

Phases of Meiosis