Your homework for Friday is to explore Quadratic Graphs which is the second page of this worksheet. The first and third pages are optional but would enhance your understanding. The online animations to explore are accessed from the left hand link on this page.

It is awkward to use on a smartphone so use a computer or tablet if you have one.

A-Level students have to be able to prove that the square root of 2 is an irrational number. However, the proof is also accessible to GCSE students. The only idea with which you may not be familiar is that fractions with coprime integers have been cancelled down as far as possible.

All students who scored less than 25/30 on Indices Test 3 or did not do Indices Test 3 please complete Indices Test 4 and hand in on Monday 29 November.

You may use your books and previous tests to help you.

Over the coming months I will be developing a new web site at chsmathsgcse.bravesites.com to provide you with practice on exam questions across the syllabus.