This page is on resources for Edexcel’s IGCSE specification. You will find past papers here and Edexcel’s teaching and learning materials here including Classroom tests and Examplar material. For a blog post on the differences between GCSE and IGCSE see this post from Lynne Davis (September 2022) which provides a useful summary.
There is a great deal of common content on GCSE and IGCSE so many resources can be used for either. Further resources for IGCSE are highlighted below.
Maths Genie IGCSE Revision includes IGCSE revision videos, exam style questions and solutions as well as past papers and mark schemes.
On DrFrostMaths see Edexcel IGCSE Foundation and IGCSE Higher.
From Gareth Westwater, see IGCSE questions by topic, on westiesworkshop.com, or on TES, a massive (be patient, there are over 5000 slides) PowerPoint of IGCSE examination questions organised by topic, combining all the individual PowerPoints of exam questions, this is very simple to navigate.
Many books are available in the My Revision Notes series of books from Hodder, most with a free document of worked examples; questions and fully worked solutions for each section of the book are provided, whilst the documents refer to the books, they are complete in themselves. It’s good to see a book with this document for the International GCSE Mathematics from Pearson.
savemyexams is a subscription site, but you can see revision notes and past papers without signing up. For example scroll down this page for notes on (4.7) Intersecting Chord Theorem. I found I was able to access one question and view the answer by selecting Test Yourself.
From Mark Willis on his Mathematics video site, IGCSE Quizlets, see also his resources for (I)GCSE Years 3/9, 4/10. and 5/11.