Inquiring golden ratio by electric nets and elastic springs

An interdisciplinary teaching activity in the Physics laboratory is described here using the hands-on methodology to experiment with high school students an interdisciplinary learning crunch focused on the Fibonacci sequence. Students were involved in the equivalent resistance calculation of an infinite two dimensional electrical circuit. In the laboratory, they built a system of resistances and, analogically, a system of springs, and verified the same symmetric properties by rediscovering the gold number. The students developed content knowledge, critical thinking, collaboration, creativity, and communication skills. The hands-on experience increased students’ motivation and participation, making them more involved in the educational process.