£0.75 (+VAT)

  • Use with manipulatives, images and abstract notation, to create stories and explore problems involving addition and subtraction. 
  • As used by NCETM in their Mastery Professional Development materials on additive reasoning 
  • Also very useful for exploring the inverse nature of addition and subtraction, and for introducing ‘empty box’ problems.
  • Dry-wipe surface for use with whiteboard pens.
  • Size: 29.5 x 9.5cm.