This work aims to investigate the approximations and distances, between what is recommended by the Common National Curricular Base and the Textbook. To raise questions about the objective, we chose to use the notion of ...

This work aims to analyze the characteristics related to the teaching of combinatorics in the textbook of the second year of high school; in a special way, focusing on the analysis of the approach of the initial concept ...

The purpose of this study is to describe the conceptions of chemistry teachers and graduates about the possibilities and challenges of using the textbook. It addresses the book of Chemistry of High School that is included ...