Sumdog is a fun website for numeracy from the people behind Crocodile Clips and Yenka / Absorb Science.
Sumdog’s free maths games are designed to improve numeracy in upper primary and lower secondary (students aged 9 to 13).
Covering 100 fine grained numeracy topics, ranging from simple addition to square roots, Sumdog adapts to the skill level of each student, helping them to work through each numeracy topic comprehensively
Students and teachers can play the games for free. You can register, which is free, or play as a guest.
Sumdog has 10 levels. Students start at level 1 and progress upwards. In every game Sumdog will recommend a level for students to try. The levels are split into topics of roughly equal difficulty. There are 100 topics in total. Students can choose a whole level or a specific topic to practise.
As students improve, Sumdog will gradually paint over the topic on the graffiti wall until it is clean. When all the topics in a level are clean, the level is completed.
It’s a fun free resource, and is well worth a visit.
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Danny Nicholson : Educator, Science teacher, ICT Consultant, PGCE lecturer, Author and Web2.0 / SMART Masters/ Interactive Whiteboard Trainer. 


