It is convenient to have a bar graph or table when communicating something on Twitter in an easy-to-understand manner, but it is difficult to create a graph as image data. In such a case, you can use ...

When an answer to a maths question is marked: full marks are given for the right answer (but it is very important to show your working, so you can check your answer and so that, if you make a small ...

Don't forget to take a ruler and calculator into the exam. When an answer to a maths question is marked: full marks are given for the right answer (but it is very important to show your working, so ...