Khan Academy: Vi Hart: Doodling in Math: Binary Trees

Video explaining how the Fibonacci series and other number series show up in plant growth patterns. [6:07]

Video demonstrating some doodling games that illustrate mathematical concepts of graph theory, touching on topology and map theory. [4:25]

Video explaining the principle by which plants arrange their flowers in order to maximize the gathering of sunlight, which relates to the Fibonacci series. [6:14]

Video demonstrating some drawing games that illustrate mathematical concepts of series and infinite series such as fractals and the Sierpinski triangle. [4:36]

Video demonstrating some number games that involve mathematical concepts of number theory such as prime numbers, Pascal's triangle, and the Sierpinski triangle. [5:28]

Video demonstrating how to draw binary trees and exploring some of the interesting shapes and patterns that can be made from them.

This video turorial [3:58] explains some of the mathematics behind drawing stars, and showing how some stars can be drawn in multiple ways.

This video demonstrates how to take linear equations written in either slope-intercept form or point-slope form and rewrite them in standard form of a linear equation. Right-click on the square at the bottom right for a full-screen view....

Video exploring equivalent fractions and how fractions can be written in a fractal or binary tree structure. Solving algebraic equations and infinite convergence mentioned. [5:45]

Video explaining some rules for space-filling curves, showing how they create fractal forms. [5:26]