ABSTRACT
Summary: One way of developing students’ intelligence is through the design of new school textbooks and educational material of a type that meets the requirements of a psycho-didactic approach. As part of the “Mathematics, Psychology, Intelligence” education project (MPI), mathematics textbooks and educational material (study books, practical work, workbooks for independent study, computer software) for middle school pupils (Years 5 to 9) were developed within the framework of an “enrichment” teaching model. The basic purpose of this model is the intellectual development of students through their mathematical education using specially constructed educational texts. The specific nature of these educational texts lies in the fact that, at the same time as conveying structures of formal mathematical knowledge, they also (1) support development of the basic components of students’ mental experience (including cognitive, conceptual, metacognitive and intentional experience) and (2) create conditions for students to employ their own individual cognitive styles. Psycho-didactic specifications for educational texts were formulated and a psychodidactic typology of educational texts was developed.
