In the Maths and English section there will be a range of tasks to choose from. You are not expected to do all of them and should not spend more than an hour on each. The best way to choose the correct task is to try the first part of the lesson - if you are confident that you understand and can quickly answer the questions, move on to the next task. Likewise, if you start a task and are struggling to understand, move back a task. The tasks are usually arranged with the easiest one at the top and the most challenging at the bottom - often they will be labelled 1,2,3, etc.