Through a review of the Vietnamese Physics textbooks, we found that along with the subject knowledge,
there are several parts mention the history of scientific discoveries. We therefore suggested several ways to
employ the historical approach explicitly with reflections to enhance students’ understanding of NOS, particular
to teach heat, an important part of Physics textbook, which can relate to the critical issue of energy degradation
in Physics teaching.
Energy plays a very important part in any science curriculum as energy was always the first need of
humanity through which other sciences or technologies were promoted. However, teaching and learning energy
effectively is always a challenge because it has a highly abstract nature but with treatise as something real. As
noted by Coelho (2009):