The context-based learning approach is an innovative strategy that places real-life contexts at the center of education. An important strategy developed within this approach is the REACT strategy. This study aims to create an activity plan based on the context-based approach, especially following the REACT strategy, for the topic 'Transformation of Electrical Energy' in the 8th grade 'Electric Charges and Electric Energy/Physical Phenomena' unit in the Turkish National Education curriculum. Additionally, students' opinions regarding the implementation were taken. The qualitative research method was adopted in the study. Firstly, the learning objectives related to this topic were determined. Taking into account the learning outcomes of the topic of electrical energy transformations, an activity plan was created that meets the purpose of each stage of the REACT strategy and allows students to learn with real life contexts. Feedback was received from two middle school science teachers and a physics education academician regarding the suitability of the prepared activity plan for the REACT strategy and 8th grade science. The initial plan was refined based on their input addressing issues such as incomplete implementation of collaboration, mismatch between context topics and subject matter, limited student assessment, and suggested time adjustments. The final activity plan was shaped according to these suggestions. The completed lesson plan was piloted and feedback was received from the students. The students gave feedback that the lessons given using the REACT strategy were motivating due to their relevance to daily life, that they were fun, and that they were different from other lessons because they included activities and more group work.