1 About this Course Sign up for Khan Academy Start Khan Academy Mission Check Khan Academy Percentage Optional Book List 2 Ancients and Arithmetic - Week 2 Lascaux Caves Patterns in Math - The Nautilus Shell Pi Project Mental Arithmetic Exercises 3 Math of Egypt - Week 3 Intro. to Egyptian Math Egyptian Multiplication Fractions and Egyptian Legend Egyptian Fractions Egyptian Number System Translating Hieroglyphic Numbers 4 Math of Egypt - Week 4 Overview of Egyptian Math The Bent Pyramid Slope Triangle Discovery Property Ownership in Egypt Pyramids and Thales of Miletus Shadow Proportions 5 Math of Mesopotamia/Babylon - Week 5 Intro. to Babylonian Math Overview of Babylonian Math Babylonian Number System Why 60? Babylonian Equations Khan Academy Balancing Act for Equations Make Babylonian Clay Tablets The Richest Man in Babylon Domino Multiples Game 6 Math of Greece - Week 6 Intro. to Greek Math The Greek Legacy Euclid Video Introduction to Logic Deductive Reasoning Basics 7 Math of Greece - Week 7 Math of Greece Overview Hypatia and Algebra Using Letters for Numbers What is Algebra? How do we use algebra? How to Re-do a Recipe 8 Math of Greece- Week 8 Archimedes and Exponents Google The Story of Archimedes Math, Physics, and Video Games Math and Mechanics - Block Stacking Platonic Solids - Greek Geometry 9 Math of Greece - Week 9 Pythagoras and the Pythagorean School Pythagoras' Monumental Discovery - Math and Music The Code- Math and Music Make Musical Fraction Tubes The Pythagorean Theorem Pythagoras - by Vi Hart Origami Proof of the Pythagorean Theorem Pythagorean Theorem Square Corners 10 Math of India - Week 10 Intro. to Math of India and Decimals Brahmagupta Invention of Zero Cyberchase - The World Without Zero 11 Math of India - Week 11 Math of India Overview Number Opposites in Khan Academy Discovery of Negative Numbers 12 Math of India - Week 12 Srinivasa Ramanujan Astronomy and Trigonometry Stars of the Future Sirius - The Brightest Star Calculate the time to Sirius in "Bike Years" 13 Math of China - Week 13 Intro. to Math of China Solving Magic Squares Magic Square Puzzles (submit) Weighing Fruits in the Chinese Market Building the Great Wall 14 Math of Italy - Week 14 Intro. to Math of the Middle Ages Fibonacci The Great Math Mystery - Fibonacci Sequence Order of Operations Vi Hart- Fibonacci Discovering Fibonacci Numbers in Nature (submit) 15 Math of Italy - Week 15 The Golden Ratio Golden Ratio Discovery Art, Math and the Renaissance Logo Design and the Golden Ratio Facial Proportions and the Golden Ratio 16 Math of Italy - Week 16 Tartaglia and Cardano Tragedy Tartaglia and Cardano Story Retold What are Cubic Equations? Rock, Paper, Scissors Championship Ping-Pong Balls and Probability Proportions Goldfish Proportions 17 Math of Italy and Scotland- Week 17 Galileo Galileo Experiment Repeated The Ball of Death Galileo's Gravity Experiments 18 Math of France 17 and 1800's - Week 18 Intro. to Math of France Rene Descarte and the Fly on the Wall The Cartesian Coordinate System Rene Descarte and the Link Between Algebra and Geometry 19 Math of France - Week 19 Joseph Louis Lagrange History of the Meter 20 Math of France - Week 20 Blaise Pascal Pascal's Triangle Discovery Pascal's Triangle Explained Pierre Fermat Prime Numbers Prime Factorization Cicadas 21 Math of Britain - Week 21 Isaac Newton Leibniz and Newton Calculus Controversy Superpowers of Calculus Isaac Newton, Gravity, and Space Isaac Newton's Laws of Motion 22 Math of Germany - Week 22 Intro. to 20th Century Mathematics in Germany Story of Carl Friedrich Gauss Story of Amalie Noether 23 Math of Germany - Week 23 Einstein Nova- Einstein's Big Idea 24 Math of Today and Tomorrow Story of Edward Lorenz and Chaos Theory Story of Lemmings - Unstable Population Story of Hilbert's 8th Problem Conclusion of the Story of Math