Análise dos LDS de Química do segundo ano do Ensino Médio com destaque para termoquímica e alimentação

Abstract

The adoption of textbooks as a teaching and learning tool in Brazilian education has received important support from the federal government in recent decades. This support was first given to elementary school, through the National Book and Teaching Material Program (PNLD), and years later to high school through the National Textbook Program for High School (PNLEM). The present study aimed to analyze the relevance of contextualizing thermochemistry content with the daily theme of healthy eating, it also aimed to evaluate whether these concepts of thermochemistry are related to food energy, as well as the importance of adopting healthy eating habits , contributing to the food education of students in the respective educational institutions. For this evaluation, it was proposed the analysis of Chemistry textbooks of the second year of high school, verification of their content and approach. We then evaluated the books of natural sciences and their technologies, which address knowledge of Chemistry, Physics and Biology, which are in accordance with the New High School. All natural science textbooks published in 2020 and included in the 2021 PNLD Guide were consulted. The data were tabulated in order to better identify their characteristics and conclude the facts. It was verified the great relevance of the contextualization of the thermochemistry content with food, since 57.14% of the analyzed books address this topic of healthy eating within the content. 71.42% present the basic concepts of thermochemistry from the energy of food and 57.14% help in the search for healthy eating within the subjects. This result showed the importance of implementing this topic in chemistry teaching, as it is a topic of public interest and the population needs support in terms of sharing knowledge that reinforces their health