A química das festas como tema gerador no ensino de Química

Abstract

Given the changes in our society, the BNCC (Common National Curriculum Base) emerges with the purpose of highlighting the importance of developing students' abilities to act as active citizens, and consequently changing the format of teaching chemistry in Brazil. The chemical/biochemical description of food can be a facilitating means for teaching Chemistry and provide meaningful learning as it allows for evidence of chemical reactions and represent them to students in a contextualized way. In this work, the food that was evidenced belongs to the class of carbohydrates, sugar (sucrose), is an ingredient very present on the table of Brazilians, and within the context of the parties it is included in several products, such as cakes, sweets, snacks, soft drinks, etc. It is a substance produced by sugarcane (Saccharumofficinarum L.) and also by sugar beet (Beta vulgaris) in colder places on the planet. Considering that Brazil is the 4th country in the world that consumes the most sugar (sucrose), there is also a need to understand the benefits and harms of its consumption by students. The work sought to make a comprehensive approach to sucrose, as well as to propose a didactic sequence to promote meaningful learning in chemistry teaching through the development of skills and competences established in the BNCC, in addition to the development of food/nutritional education.