NCTM Illuminations Maths Resources
The National Council for Teachers of Mathematics (NCTM) in the US has produced a plethora of interactive resources to improve the teaching and learning of maths for everyone. The ITPS (interactive teaching programs) are available for both KS1 and KS2 maths and can be used by teachers and pupils alike. Each resource has a thumbnail, a description and a link to the relevant resource.