Tutpup is a free online resource for children to play simple maths and English games against other children from all around the world. The beauty of the site is that every child chooses a nickname, based on a colour, animal and number, and therefore remain completely anonymous. A teacher can sign up and create a class code, so that their students only need to enter a minimum of information on the site.
Games currently on the site involve addition, subtraction, multiplication, division, algebra and spelling. There is a Hall of Fame which shows the members who have won the most games over the last 24 hours, 7 days or month, with the leaders having won over 1000 games in the last 30 days! It seems to be a really motivational site for students to practise key skills.
(Thanks to Tom Barrett for pointing me there.)

Posted by ssclc
The CLC worked with staff from Seven Hills School last year to help create some maths materials with content at P levels and KS1/2 but with the visual and auditory interest level at secondary level, and accessible using switches and other accessibility options. The School received funding from Becta for their Repurpose, Create, Share project to create the materials. The activities are based on key skills (counting, missing numbers, ordering numbers, money and time) with the themes of animals, shopping, television, football and cars.