- http://resources.woodlands-junior.kent.sch.uk/maths/shapes/angles.html#angles (Try the banana game - very tricky but a good test!)
- http://www.bbc.co.uk/schools/teachers/ks2_activities/maths/angles.shtml
- http://www.crickweb.co.uk/ks2numeracy-shape-and-weight.html
- http://www.amblesideprimary.com/ambleweb/mentalmaths/protractor.html