تشخيص و معالجة تصورات بديلة في تعلم مفاهيم كيميائية أساسية لبنية المادة

Abstract AR

One of the main causes that makes the chemistry students fail their exams, as it had been clearly expressed by a wide range of studies, is the pre-acquaintances of concepts achieved by traditional methods.

The aim of this study, therefore, was to try a teaching strategy about the matter structure, inspired by the constructivism theory, in order to modify the students conceptions of the matter structure.

We applied a pre-and post acquaintance measure upon a sample of 135 students in order to prove their knowledge about the matter structure As a result the t.

test = 2.

8 was significant at 0.

01 level, and that was in favour of the post- application of the matter concepts.