Education + Fun = KidsCalculate
KidsCalculate helps children with obtaining a useful mental image. Apart from better comprehension right away, it also helps them on the long run to develop good calculative and mathematical skills.*.
KidsCalculate harbours the best elements of Abacus, Number Line, Bead Chain and Montessori Stacking System.
The software is able to give explicit explanations as well. Using artifical intelligence, speech synthesis and animations, it is explained in detail in which ways the current exercise can be solved best.
This video gives a good idea of the possibilities: