This guide explains everything you need to know about circles, including calculation of area, segment area, sector area, length of an arc, radians, sine and cosine.
Working out the odds of an event occurring allows us to estimate the number of times that event will take place in future trials. Permutations/combinations are also an important part of the analysis.
This article describes a technique for performing multiplication of equations with three digits on the abacus. Learn from an expert in the use of the counting tool.
How many cats fit into the trunk of a Honda Civic....and other fun math problems involving our favorite feline friends
How do you add and subtract fractions on the abacus? Mixed numbers? Complex fractions? Introduce children to fractions? Learn from this article.
Solving triangles using Pythagoras's theorem, the cosine rule, the sine rule and various ways of calculating the area of a triangle.
How many people do you need to have in a room before you have a better than 50% chance of at least two people sharing a birthday? The answer is surprisingly low.
Covering bases and exponents, laws of exponents. log to the base 10, natural logs, rules of logs, working out logs on a calculator, graphs of log functions, log scales and using logs to perform multiplication.
A farmer has 100 metres of fence and wants to make a rectangular enclosure with the largest possible area. What size should the sides of his rectangle be?
This first part of a two part tutorial covers the concept of limits, differentiating by first principles, rules of differentiation and applications of differential calculus.
When solving division problems, it can be challenging for students to learn how to interpret the remainder. With these 40 example division problems, you can learn more about four possible ways to interpret the meaning of the remainder.