Instructional Video1:42
Curated Video

Introduction to Ordinal Numbers

Pre-K - 3rd
Learn the ordinal numbers with our friends
Instructional Video0:58
Mr. R.'s Songs for Teaching

Ordinal Numbers Song

Pre-K - 4th
#shorts #ordinalnumbers #math The Ordinal Numbers Song! This is the short version of my ordinal numbers song. Teach first, second, third, fourth , etc.
Instructional Video14:28
PBS

Kill the Mathematical Hydra

12th - Higher Ed
How do you defeat a creature that grows two heads for every one head you chop off? You do the math.
Instructional Video2:56
Curated Video

Five little fingers- Lets count our fingers

Pre-K - 3rd
Learn and count the fingers with a fun rhyme
Instructional Video11:47
PBS

How Infinity Explains the Finite

12th - Higher Ed
Peano arithmetic proves many theories in mathematics but does have its limits. In order to prove certain things you have to step beyond these axioms. Sometimes you need infinity.
Instructional Video13:19
Curated Video

Counting To Infinity And Beyond On A Chessboard

6th - 11th
The numbers "infinity plus 1" and "infinity squared" sound like they are made up, but mathematicians do use such numbers in set theory. They are called transfinite ordinals and they arise in combinatorial game theory. This video...
Instructional Video14:29
PBS

Kill the Mathematical Hydra

10th - Higher Ed
Feel like Hercules for a day. Individuals watch a video that describes how to defeat a mathematical Hydra that grows additional heads when one is cut off. The solution requires scholars to use ordinals and the well-ordering theorem.
Instructional Video11:47
PBS

How Infinity Explains the Finite

10th - Higher Ed
Using infinity to prove a sequence is finite sounds counter-intuitive, doesn't it? Scholar learn about hereditary base notation and the Goodstein sequence. They discover that proving the Goodstein sequence is finite requires infinite...
Instructional Video12:20
PBS

Infinite Chess

10th - Higher Ed
Imagine an infinitely-large chess board with an infinite number of pieces. Pupils learn about infinite chess and how it is a determined game, in that there is always a winning strategy. The video first applies Zermelo's Theorem to show...