TED-Ed
How Many Ways Can You Arrange a Deck of Cards?
Entertain and grab your learners' attention with a short video clip that engagingly teaches the concept of a permutation and how a factorial is a wonderful shortcut for theoretical probability calculations.
TED-Ed
How to Speak Monkey: The Language of Cotton-Top Tamarins
Tamarin monkey language can be categorized by stem upsweep, duration, peak frequency, and frequency change. Although other complex terminology is used to describe the 38 calls of this species, the video is easy to follow and a...