Below you can find teaching videos on all GCSE and IGCSE Mathematics topics.  There is also a page of  Past Papers for Edexcel IGCSE  which includes video solutions for 3 full practice papers for the new 9-1 syllabus and another page of practice exam questions by topic with video solutions!

Number – Primes, HCF and LCM
Algebra – Simultaneous Equations
Algebra – Direct and Inverse Proportion
Algebra – Sequences