Teachers have an important influence on pupils' academic progress, yet the quality of teaching varies widely. Policymakers, school leaders, and teacher educators therefore face the challenge of designing and commissioning professional development (PD) to help all their teachers become as effective as the best teachers. In the last two decades, a…

This study is intended to review some of the selected researches carried out on students' understandings of enthalpy and spontaneity. The review puts together the important findings of the researches, summarises the misunderstandings identified so far and the possible sources of these misunderstandings. Therefore, this study would be beneficial…