Abstract:
The teaching sequence is the result of research developed in the National Network of Mathematics Graduate Programs (PROFMAT) at the Federal University of Bahia (UFBA). It was conducted at a public school in the municipality of Valença, Bahia, with a third-year high school class. Inspired by Critical Mathematics Education, the sequence highlights the role of mathematics as a tool for understanding and interacting with the world, integrating mathematical knowledge with essential skills for planning life projects, including financial analysis and salary calculations. It adopts an investigative approach to help students develop critical thinking skills when analyzing their career choices and the paths to achieving them. Through practical and reflective activities, such as creating spreadsheets and studying pay stubs, students are guided to apply mathematics in their daily lives, understanding concepts such as INSS (National Institute of Social Security) and IRPF (Income Tax).
