5 Approaches to problem solving

6 Writing out solutions

6.1 How a question is marked

When you tackle a mathematical question, it is often helpful to think about how it would be marked.

To give yourself some practice at this, in this section you will:

• read and criticise sample solutions;

• then read what the tutor wrote about them; and

• see if any of the tutor's comments are applicable to your own solutions.