Subtraction Circles- NRICH

Watch ‘Dragons scales’ https://www.youtube.com/watch?v=V2JhkfjIgXM Stop the movie and ask the kids if they think the dragon is correct and why?{...}

20 Maths Games 5 to 8 year olds Kathleen Morris A variety of place value. addition and subtraction warm up{...}

Launch: http://www.ictgames.com/abacusInteger.html Introduce an Abacus in the classroom show how to represent numbers in the teens on the abacus  {...}