Because he was displeased with the way mathematics was taught to students at school, the German author decided to pen a book that teaches mathematics in an innovative way.
ولأنه كان مستاء من الطريقة التي تُدرّس بها الرياضيات في المدارس ، قرر الكاتب الألماني تدريس الرياضيات بطريقة مبتكرة .