White Rose Maths
Lots of really useful videos here to help you understand some of those really tricky concepts.
Explore the nrich website for some tricky problems to solve and games to play.
Have a look through their maths activities. You can browse by age group so you get a challange that is right for you!
Geometry - Properties of Shapes
Have a look at BBC Bitesize's resources for KS3 Maths. Start looking at mathematical concepts we have already studied or are currently studying with home learning.