Mental calculation for Everybody


mathildr is a system for depicting quantities. The learning materials are suitable for teaching in schools, for use in educational support or for learning at home. mathildr is available as an app for tablet and PC, a wooden ten-slot-field, flashcards and wooden dice. The app is suitable for all children and can be used in joint teaching.

NEW: App now free of charge

We were awarded the third Cornelsen Future Award at the didacta 2019 education fair. We invested the prize money well: The app is now available free of charge!

to the app


Scientific basis

mathildr was developed together with people with trisomy 21, Down syndrome. The system was developed in the framework of a representative study carried out by the University of Hamburg. The study showed that learners with trisomy 21 rely on abstract learning materials and that they benefit from items being grouped into pairs.

Book about the study

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