A SEQUENCE OF ACTIVITIES TO TEACHING REDOX PHENOMENA USING PROBLEM SOLVING METHODOLOGY
Redox phenomena; Problem-solving; Sequence of activities
Teaching electrochemistry is very challenging for chemistry teachers. It is common for a large portion of high school students to perceive chemistry as difficult to understand. This often occurs due to its abstraction, especially when dealing with knowledge related to redox phenomena. In this regard, many studies investigate and demonstrate the potential of the Problem-Solving Methodology (PSM) for science and chemistry education. Therefore, the objective of this dissertation is to propose a sequence of activities for teaching redox phenomena using the methodological approach of PSM. To achieve this, a sequence of activities was developed for teaching redox phenomena in basic education, constituting the educational product to be presented for the professional master's degree in chemistry - PROFQUI. The study conducted incorporates elements of action research, utilizing participant observation of the activities conducted during chemistry classes. The proposed activities follow the theoretical and methodological guidelines of problem-solving. The initial application, aimed at validation, was conducted with fifteen students from the third grade of a private school in the city of Natal. Prior to that, a diagnostic evaluation (DE) was carried out, which used a questionnaire with open and closed questions as a data collection instrument. The obtained data will be categorized and analyzed qualitatively using content analysis method. These results will complement the evaluation of the sequence of activities.