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Currently, we’re focusing on developing math courses offered in high schools and some colleges all across Canada and the United States. The courses are developed alongside official curriculum documents, and are delivered and written by certified educators with high school and college teaching experience. The academy is an extension of our popular YouTube channel, which currently offers over 2,000 free videos. What we’ve done is organize our videos in the order they’d appear in a classroom, and have provided simple instructions that get right to the heart of the subject. Rather than read through rigorous instructions found in a textbook, we cut right to the chase so you spend more time focusing on what’s important.

Conditional probability

When we compute the probability of event $F$ assuming that the event $E$ has already occurred, we call this the conditional probability of $F$ given …

Modulo-m Systems

If m is an integer greater than 1, then a modulo-m system consists of the numbers 0,1,2,…,m−1. Counting and arithmetic operations are performed in a …

Understanding Non-Base 10 Systems

In base-10, place values correspond to powers of 10, for example: In base-b, place values correspond to powers of b: Base-5 Base-5 uses the digits 0, 1, 2, …

Using Napier’s Bones to Multiply

The seventeenth century saw the beginning of the development of instruments to aid calculation, making the process gradually more and more automatic. One of the …

The Mayan Numeration System

The Maya Indians had a numeration system based on the number 20. It used patterns of dots and bars to count, as shown: Q.   Convert 8,292 …

The Babylonian Numeration System

The Babylonian numeration system is based on powers of 60 (sexagesimal system). There are two symbols: Small numbers are represented much like the Egyptian system. For …