These questions on using SohCahToa can seem a little daunting.. but they are used extensively in maths and have some real, practical applications. Watch the video and try the quick test. You can use SohCahToa - the "trigonometric functions" to find the size of an angle in a right angle triangle or to find the length of a side in a right angle triangle … [Read more...]

How to use SohCahToa continues, with a video on finding the length of a missing side in a right angle triangle. Watch the video and try the quick test. As before you can use SOHCAHTOA to calculate the length of a missing side, although, in this case, you'll need to: know the length of one side know the size of one of the acute angles A typical exam … [Read more...]

Probability tree diagrams are just a picture that show all the possible outcomes, from a series of events. They can be quite useful, but probability needs some careful thought. Watch the video and download the quick test - good luck! This video deals with a GCSE question: There are 3 strawberry yoghurts and 4 peach yoghurts in a fridge. Kate takes a yoghurt at … [Read more...]

How to solve linear equations .. some of them you'll solve without really thinking about! Suppose you bought a CD for £8 and then two books at the same price. The total cost is £25 and, with a little bit of arithmetic, you might work out the price of each book is £8.50. Mathematicians like to call these "linear equations" and they look something like: 2B + 8 = … [Read more...]