The History of Physics stands out as a possibility to help make teaching more critical Physics, revealing a concern to make it more efficient and more adjusted to reality. Knowing the history of physics, its development and the process of acceptance of scientific theories can help to emphasize the non-linearity of physics and the different readings that it can have, for history shows us "why" of the conceptual categories of science. The considerations of this article try to show the need for contextualized Physics in its history and the importance of the history of physics as a fundamental axis in the teaching - learning process.
The teaching of physics concepts involves the construction of knowledge in the students' minds. The aim of this article is to present a case report of teaching density and specific mass concepts in high school technical education classes. The study analyzes the results of the construction of methodology and development of a product so that teachers of Physics can give their students the construction of the concept of density of objects and the specific mass of the substances and perceive the different constitutions of the substances found in the Nature or even technologically prepared. The work was motivating with the students praising the obtained learning.
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