The Learning Resources MathLink Cubes Numberblocks Activity Set 11-20 introduces children to the world of numbers through play. With 290 colorful linking cubes and characteristic accessories such as helmets or skateboards, the familiar characters from the TV series can be recreated in detail. The set contains 30 math activities on double-sided, wipe-clean activity cards directly based on the episodes. This makes learning the basics of mathematics in the number range from 11 to 20 a visual experience that actively supports mathematical understanding and fine motor skills.