Maths with self-checking – four frames for the four arithmetic operations, 10 practice cards each. The string threads through the correct slot, and diagonal lines on the back show whether it’s right. Learning without a teacher.
At a glance
- Four number frames: addition, subtraction, multiplication, division – all arithmetic operations
- 10 cards per frame: 40 practice problems at your fingertips
- Self-checking: diagonals on the back reveal the correct answer
- String mechanism: solve the problem, thread the string
- From age 3: first arithmetic operations without supervision
How it works
Your child picks up the addition frame and starts top left: 2 + 1. They look at the right side, find the 3, and thread the string into the matching slot. On the back, a diagonal line shows they got it right. If they solve it incorrectly, the path crosses and correction follows. This way, children learn independently, at their own pace – and build confidence in their maths skills.
Safety & Materials
| Material | Plastic |
|---|---|
| Dimensions | 5 x 15 cm, approximately 2.5 cm thick |
| Contents | 4 frames, 10 cards each |
| Function | four arithmetic operations with self-checking |
| Age recommendation | from 3 years |
Shipped from Germany. Invoice purchase available for authorities and public institutions.
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