As a consequence of student difficulties related to concepts of greater abstraction of Chemistry, the concept of Meaningful Learning according to the theory of Ausubel was used in this work. From it, the twodimensional ...

A large body of science education literature suggests that argumentation plays a central role in science and should therefore maintain the same centrality in science education. However, opportunities for students to engage ...

Through the difficulties that were found in the educational process of Chemistry, nowadays, and in a situation which school contents are not related with students life, this study investigated the contributions of problematic ...