Huge number! KS3 Algebra. Shape and space. Fractions and General revision. GCSE and IGCSE Algebra. Geometry. Trigonometry. Number. Probability and Graphs. See MATHS QUIZZES II for even more :) Customise the challenge section - see http://ibmathsresources.com for more dingbats. Divide the class into groups. Each group has a mini-whiteboard. All groups try to answer after a set length of time. All those correct get the points. Works excellently for 40-60 minutes.