This link is to a database of websites shared by teachers which has many useful resources for learning.  It has been compiled by Teach First, a social Enterprise dedicated to building a fair education for all.   https://www.teachfirst.org.uk/

https://docs.google.com/spreadsheets/d/149TQzqLlY7C-jxbCRdMYz8oYXxfimhI1k9IiI-PxWe4/edit?usp=sharing