PBS
Splitting Rent with Triangles
You can find out how to fairly divide rent between three different people even when you don't know the third person's preferences! Find out how with Sperner's Lemma.
SciShow Kids
How to Make a Paper Snowflake! Project for Kids
Join Jessi, Squeaks, and a special guest to celebrate the seasons changing by making paper snowflakes!
PBS
Dissecting Hypercubes with Pascal's Triangle
What does the inside of a tesseract look like? Pascal's Triangle can tell us.
SciShow Kids
How to Make a Paper Airplane
Learn how to make a great paper airplane, and find out what makes it fly!
TED-Ed
TED-ED: How to prove a mathematical theory - Scott Kennedy
Euclid of Alexandria revolutionized the way that mathematics is written, presented or thought about, and introduced the concept of mathematical proofs. Discover what it takes to move from a loose theory or idea to a universally...
TED Talks
TED: The surprising ingredient that makes businesses work better | Marco Alvera
What is it about unfairness? Whether it's not being invited to a friend's wedding or getting penalized for bad luck or an honest mistake, unfairness often makes us so upset that we can't think straight. And it's not just a personal issue...
TED-Ed
TED-Ed: The mathematical secrets of Pascal's triangle - Wajdi Mohamed Ratemi
Pascal's triangle, which at first may just look like a neatly arranged stack of numbers, is actually a mathematical treasure trove. But what about it has so intrigued mathematicians the world over? Wajdi Mohamed Ratemi shows how Pascal's...
MinutePhysics
TOP 10 REASONS Why We Know the Earth is Round
TOP 10 REASONS Why We Know the Earth is Round
TED-Ed
TED-Ed: Can you solve the world’s most evil wizard riddle?
The evil wizard MoldeVort has been trying to kill you for years, and today it looks like he’s going to succeed. But your friends are on their way, and if you can survive until they arrive, they should be able to help stop him. Can you...
TED-Ed
TED-Ed: Can you solve the secret werewolf riddle? - Daniel Finkel
You’re on the trail of a werewolf that’s been terrorizing your town. After months of detective work, you’ve narrowed your suspects to one of five people. You’ve invited them to dinner with a simple plan: to slip a square of a rare...
TED-Ed
TED-ED: How many ways are there to prove the Pythagorean theorem? - Betty Fei
What do Euclid, 12-year-old Einstein, and American President James Garfield have in common? They all came up with elegant proofs for the famous Pythagorean theorem, one of the most fundamental rules of geometry and the basis for...
TED-Ed
TED-Ed: Daniel Finkel: Can you solve the unstoppable blob riddle?
A shooting star crashes onto Earth and a hideous blob emerges. It creeps and leaps, it glides and slides. It's also unstoppable: no matter what you throw at it, it just re-grows and continues its rampage. The only way to save the planet...
TED-Ed
TED-ED: The science of symmetry - Colm Kelleher
When you hear the word symmetry, you might think generally of triangles, butterflies, or even ballerinas. But defined scientifically, symmetry is _a transformation that leaves an object unchanged." Huh? Colm Kelleher unpacks this...
Curated Video
Shapes for Kids | Learn and Play Fun Shape Games
New ReviewLet’s learn shapes together! In this fun and colourful video, kids will learn shape vocabulary with talking flashcards and then play exciting interactive games like "Guess the Shape," "Find the Shape," and "Pick a Shape Surprise." This...
Curated Video
Converse Pythagorean Theorem
New ReviewA video entitled "Converse Pythagorean Theorem" that covers how to test if triangle side lengths make a right triangle.
Curated Video
Area Applications
New ReviewA video entitled "Area Applications" which shows how to break down a composite shape so that the area can be found.
Curated Video
Real-Life Problems
New ReviewA video entitled "Real-Life Problems" which talks about right triangle situations in life.
Curated Video
Pythagorean Theorem Is Useful
New ReviewA video entitled "Pythagorean Theorem is Useful" which talks about right triangle situations where it's appropriate to use the Pythagorean theorem.
Curated Video
Pythagorean Theorem In Solids
New ReviewA video entitled "Pythagorean Theorem in Solids" which talks about how 2D right triangles can be found in many 3D figures.
Curated Video
Examine Unknown Triangles
New ReviewA video entitled "Examine Unknown Triangles" that covers how to use the distance formula and the converse of the Pythagorean theorem to see if triangles are right triangles.
Curated Video
Similar Figures Lengths
New ReviewA video entitled "Similar Figures Lengths" which shows how to use proportions to find side lengths in similar figures.
Curated Video
Create Triangles
New ReviewA video entitled "Create Triangles" which shows how to draw a triangle with a compass and straight edge.
Curated Video
Verify Transformation Type
New ReviewThis video, entitled "Verify Transformation Type," explains the different types of transformations that can occur with a two-dimensional figure.
Curated Video
Practical Examples
New ReviewA video entitled "Practical Examples" that covers transformations the result in similar figures, such as dilations and translations.