摘要：In this article, an electrochemistry fruit battery activity that has been modified with design thinking, cost consideration and optimization is described. This activity was done during a common core subject with Year 1 undergraduate students of various background. The students were first taught the concepts of electrochemistry and redox reactions. They were then introduced to the activity where each group of 3 to 4 students had the option to choose from different electrode pairs, different types and number of fruits and vegetables, and LED of different voltage to light up. Each item was labelled with a price and each group could obtain items up to a maximum of $10 virtual ‘budget’. The final score was affected by the voltage of the LED that was lit and the amount spent on building the fruit battery. The higher the voltage of LED and the lesser amount spent would result in a higher score. The challenges for the students in this activity include applying electrochemistry concepts to select the most appropriate electrode pair and deciding how many and which fruit or vegetable to use to achieve cost and performance optimization in building a fruit battery.
