Wie kommt das Denken in den Kopf...

The development of thinking occurs on the basis of representational activities in the external perceptual space, symbolic activities in the external imaginative space, which is the external memory, and in the internal imaginative space, which is the internal memory, as mental activity, in the internal conceptual space.

This way of learning to think has proved successful not only for students with dyscalculia and mental retardation.

At present, in all types of schools, students and teachers have problems in teaching arithmetic. This book has proven itself for teachers in elementary schools, comprehensive schools, high schools, and vocational schools alike. It is required reading for all teachers who teach mathematics.

Lehmanns Media, Berlin 2022