Geographic education in recent years has undergone major transformations in school curricula, moving from a memorization practice to a critical reflection based on the students' local reality. This is included in official teaching documents. On the other hand, the application of this new approach to applicability problems, largely due to the lack…

This paper aims to introduce the initiative "Escola Sirius para Professores do Ensino Médio" (ESPEM, Sirius School for High School Teachers) hosted by the "Centro Nacional de Pesquisa em Energia e Materiais" (CNPEM, Brazilian Center for Research in Energy and Materials) and supported by the Sociedade Brasileira de Física (SBF,…

The objective of this study is to demonstrate that the criteria of didactical suitability, proposed by the theoretical framework known as the Onto-Semiotic Approach (OSA) of mathematical knowledge and instruction, are powerful tools for organizing the reflection and assessment of instruction processes carried out by mathematics teachers. To this…