A free software to learn the 1x1.
Reprogrammed in April 2018. For many years, the predecessor (created for XP of its time) was a great success and was even integrated in a publication for primary school teachers as an example.
The trainer has 3 functions.
1) Pre-learning with balls should make the principle of the 1x1 visually understandable.
2) learning a series, e.g. Row 3, or 6.
3) learning with random combinations.
3b) learning with random combinations, but the learning area is self-determined.
Please click on the numbers. 1, 2, or 3 or at the end 3b.