Set theory is making an appearance in the new GCSE syllabus for both Foundation and Higher. Here is a simple introduction from UKmathsteacher.
Many thanks to Mr Barton for this excellent quiz.
Can you correctly answer the questions about this graph?
There are two extra questions on the worksheet which are also below.
Here is a great quiz from karenjs231 on angles. Remember in GCSE there are often angles questions where 1 mark is for finding the right answer and the other is for explaining why, eg stating angles in an isosceles triangle add up to 180 degrees and 2 must be equal.