Instructional Video
Khan Academy

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

9th - 10th
Video demonstrating how to draw binary trees and exploring some of the interesting shapes and patterns that can be made from them.
Instructional Video
Khan Academy

Khan Academy: Vi Hart: Wau: The Most Amazing, Ancient, and Singular Number

9th - 10th
Video explaining the number wau, and some of its properties and how they relate to fractals. [5:19]
Instructional Video
Khan Academy

Khan Academy: The Most Amazing, Ancient, and Singular Number

9th - 10th
Video explaining the number wau, and some of its properties and how they relate to fractals.
Instructional Video
Khan Academy

Khan Academy: Doodling in Math: Doodling in Math: Squiggle Inception

9th - 10th
Video explaining some rules for space-filling curves, showing how they create fractal forms.
Instructional Video
Khan Academy

Khan Academy: Vi Hart: Doodling in Math: Sick Number Games

9th - 10th
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]
Instructional Video
Khan Academy

Khan Academy: Doodling in Math: Doodling in Math: Sick Number Games

9th - 10th
Video demonstrating some number games that involve mathematical concepts of number theory such as prime numbers, Pascal's triangle, and the Sierpinski triangle.
Instructional Video
Minute Earth

Minute Earth: Why Do Rivers Curve?

9th - 10th
Find out the science behind how and why rivers begin to meander and curve over time. [2:57]
Instructional Video
Khan Academy

Khan Academy: Doodling in Math: Doodling in Math: Triangle Party

9th - 10th
Video exploring triangles and illustrating fractal concepts such as the Koch snowflake
Instructional Video
Khan Academy

Khan Academy: What Is a Fractal (And What Are They Good For)?

9th - 10th
Fractals are complex, never-ending patterns created by repeating mathematical equations. Yuliya, an undergrad in Math at MIT, delves into their mysterious properties and how they can be found in technology and nature.
Instructional Video
Khan Academy

Khan Academy: Trippy Shapes

9th - 10th
In school, you learn about shapes with sides and edges - but there are weird shapes out there (beyond our 3 dimensions) that defy our normal idea of geometry. QuanQuan and Jenny explain, knit, and 3D print their way through trippy shapes!
Instructional Video
Khan Academy

Khan Academy: Koch Snowflake Fractal

9th - 10th
A shape that has an infinite perimeter but finite area.
Instructional Video
Khan Academy

Khan Academy: Area of Koch Snowflake (2 of 2)

9th - 10th
Summing an infinite geometric series to finally find the finite area of a Koch Snowflake. This is an advanced video.
Instructional Video
Khan Academy

Khan Academy: Area of Koch Snowflake (1 of 2)

9th - 10th
Starting to figure out the area of a Koch Snowflake (which has an infinite perimeter). This is an advanced video.
Instructional Video
Khan Academy

Khan Academy: Vi Hart: Doodling in Math: Squiggle Inception

9th - 10th
Video explaining some rules for space-filling curves, showing how they create fractal forms. [5:26]
Instructional Video
Khan Academy

Khan Academy: Vi Hart: Doodling in Math: Triangle Party: Triangles!

9th - 10th
Video exploring triangles and illustrating fractal concepts such as the Koch snowflake. [4:25]