The general idea of an educational design is to deliver basic concepts (and pre-concepts) of future sciences to students, thus they will become students’ actual thinking instruments. According to Davydov, for this purpose we have to reconstruct the situation of the concept's origin and provide students’ work within this context with special modelling means (which can be, sometimes, extracted from the history of concept’s actual development). In this paper we present an overview of the introductory module of natural sciences developed according to the principles of Developmental Instruction. According to our analysis, “Nature laws” were introduced as the requirements towards human purposeful operations with “reluctant” natural material, which was transformed to special “things” (instruments, materials, supplies…) to suit human needs. As we remove the “contemporary coating” from well-known modern technologies and techniques, we will find traits of their ancient origins. Hence, we have made testing ancient technologies the foundation of our course. The whole discourse was changed: from the history of nature to the history of culture, from the actions of observing, describing and classifying to purposeful transformation and verification of hypotheses. Students’ work within the educational module includes: working over special texts, testing some fragments of technologies in hands-on experiments and constructing models. We will provide examples of students’ work over texts and labs, mediated by a special modelling tool – the technological chart.
Background. We apply the theory of step-by-step concept formation (Galperin) and the theory of learning activity (Davydov) to the practice of education and teacher training. Objective. ! is paper describes a feasible way to teach the basics of Galperin’s theory to students studying pedagogical psychology, by involving them in an exemplary educational module on combining chemical formulas according to the elements’ valency values. Design. We suggested that our students participate in an educational module which was designed as an example of how to materialize orientation components of action as the basis of concept formation. ! e “practical” action for mastering the valency concept was to combine the correct formula for a pair of elements, whose valency was provided, and correct the formulas made by someone else. However, the core “orientation” required an extended procedure of building a “molecule” structure with a special construction kit. ! e key challenge for the students was to coordinate their calculation of the number of bonds needed for the molecule, and name the exact total before they would receive their atom-tokens for constructing the model. Results. Our workshop participants took on the role of students facing their " rst encounter with chemistry, and embarked on the formation sequence. At the same time they analyzed the mistakes they had made by ignoring some procedural steps. Considered through the lens of Galperin’s theory, these “adult” mistakesproved how vital his theoretical principles are for educational design. Conclusion. Our workshop thus illustrated that the search for the proper action for concept formation within Galperin’s theory framework is a challenging task. ! e di# culties that our participants experienced while they worked as pupils revealed the divergence of didactic approaches. ! e e$ ectiveness of the concept formation approach, even within our small exemplary educational module, once again con" rmed the practical value of pedagogical psychology in general, and Galperin’s theory in particular.
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