Each day I select one of my favourite free maths resources that have been uploaded and shared by the generous and incredibly talented users of the TES Maths website and tweet it out via @TESmaths. I call this feature Resource of the Day (ROTD).
Here is a summary of the previous week.
And of course, all the resources selected are completely free. You just need to register on the TES website to download them. And as ever, a huge thank you to all the teachers who share resources. You make TES what it is 
Monday: a challenging activity on forming algebraic expressions
Tuesday: a complete lesson on all aspects of algebraic fractions
Wednesday: deriving the area of parallelograms and trapezia
Thursday: “Diagonals of Rectangles” remixes a classic coursework task
Friday: a really nice 3D shape matching activity
Saturday: this shape assessment covers skills from Grade F to A*
Sunday: a really nice structured worksheet for factorising quadratics