Transitioning viewers from the number system with which they are so familiar, this video introduces the concept and application of binary numbers. Sal acknowledges that this system can be awkward and counter-intuitive at first, but he...

Learn a bit about binary code. Pupils find out what network engineers do by watching a video in which a real-life engineer explains the math she uses in her job. As an associated activity, they consider how binary numbers work and answer...

100 floors, 100 Faberge eggs, one thief, and one escape vehicle. Young logicians put together what they know to determine how a thief can safely drop a fragile Faberge egg out a window of the city museum into her waiting truck and escape.

Don't be afraid of this resource — it won't byte. The fourth video in the series focuses on binary numbers and how computers use bits and bytes to encode information. It also explains 32-bit and 64-bit computing systems.

A video posits the question of how to identify the one poisoned bottle of wine from 1,000 bottles by getting 10 rats to drink the wine. Hint: Binary numbers become very useful in this situation.

Usually teachers want you to stop counting with your fingers. A short video demonstrates how to count up to 1,023 on two hands using binary numbers. Now, if only you could count with your toes!

Eight-year-old James, demonstrates how he counts in binary. This video does not have an explanation of what binary is but could act as an example of the binary system.