This video looks at a GCSE maths rearranging a formula type questions and is aimed at around grade 5 ... although they are slightly more challenging, particularly question 3. 1. Make t the subject of the formula 2. Make h the subject of the formula 3. Make y the subject of the formula Download a copy of the questions here: Quick Test Rearranging … [Read more...]
GCSE maths stratified sampling – grade 5
This video looks at a GCSE maths stratified sampling question and is aimed at around grade 5. The questions are fairly straightforward and, once you get used to the method, should be OK to solve: Download a copy of the questions here: QT Stratified Sampling Here's a copy of the written answers: QT Stratified Sampling ANSWERS 1. The table shows the number of … [Read more...]
Surface area of a cylinder formula – GCSE maths grade 5
These videos deal with surface area of a cylinder formula questions aimed at around grade 5. They can be a little challenging and you might need to use the formula in a number of ways - particularly the second question of video 2. - A solid cylinder has a height of 12cm and a radius of 5cm. Work out the total surface area. Give your answer correct to 3 significant … [Read more...]
Ratio – GCSE maths higher tier questions
Here's a link to the questions: QT - Harder ratio problems and here's the answer paper: QT - Harder ratio problems ANSWERS These videos deal with ratio GCSE maths higher tier questions aimed at around grade 5, although they can be a little challenging. There's quite a lot of words, and it's good to try to ‘sketch’ out the question to help with … [Read more...]
Pythagoras line segments
This video deals with Pythagoras line segment problems, and is aimed at around grade 5 GCSE maths. You'll need to find a way to create a right angled triangle on the grid and, as always, please do stop the video, try the questions, and compare your solution. This video deals with slightly different Pythagoras type questions, in the form of calculating a pythagoras line … [Read more...]