Students at St. Raymond often end up simplifying or improving the lesson being offered by the teacher. Below (in the red circle) are two circuit boards connected together as configured by Mr. Hawthorn. The instructions to the students were to connect pins #8-11 on the Arduino to #in1-in4 on the L294 motor amp board. I assumed the students would use the provided wires. Nope!
Students simply inverted the boards and plugged them in directly (blue circle). Adults don't always have the best, or simplest, solution to a problem.