In debate and discussion, students have a chance to share and learn new knowledge and reflect on the ways other students think. Because these lessons could not be finished in one class time, students were given chance to inquire about conceptual, contextual, and technical information relating to motors and batteries at their homes. During outside school time, each student was required to make a portfolio to report the activity related to motor design and battery used.
Once the students had finished designing a motor, they tested the performance of the motor using a toy car on a circuit and recorded the speed of the toy car. In this step, students identified problems, and evaluated their product. This activity provided students an opportunity to redesign the solution or change the goal. In the last lesson, students concluded what they have learned from these lessons with emphasis on energy, electricity, electrochemistry, and motion concepts.