Here are some maths revision resources, suitable for GCSE and AS Level. All are free and available on their respective websites.
GCSE and A Level Maths Revision – Advice for Students
The Definitive Guide to Maths Revision at GCSE and A Level – there is some great advice here. I especially like the Revision Power Hour. But, for maths, I’d recommend finding more than one past paper question for Step 3, since you need to be doing about 20 marks in 20 minutes.
An Excellent Tool for Quadratics Revision
The Pick a card… resource from Underground Maths is an excellent revision or fluency exercise on the topic of quadratics. Click on one of the cards to reveal a property of a certain quadratic. The task is to work out the content of all the other cards. Clicking “Generate new numbers” produces a brand new quadratic, or you can choose specific values of a, b and c. The resource only generates quadratics with a non-negative discriminant. This ensures the graphs will cross the x-axis.
Topic revision for C1/C2
C1 and C2 Workbook and Exam Papers (from m4thsdotcom). This is a collection of topic-based worksheets and exam papers that are suitable for C1/C2. They are for the Edexcel specification, but definitely useful for other boards too. Individual files can be found here.
GCSE Maths 9-1 Revision Resources
The Access Maths website has many impressive resources. Check out the Crossover Problems, Octagon Revision Mats and Easter Revision Calendars.
Free Revision Guide for 9-1 GCSE Maths
52 page higher and foundation revision guide from www.m4ths.com. This is suitable for Edexcel, AQA and OCR exam boards. There are links throughout the revision guide which open YouTube videos and worksheets. This is the free version – there is a link to buy the full version on page 1.