Based on observations during the lessons, most students decided to buy a motor
rather than make it, but they changed their decision after noticing other groups that were
able to design a motor and car that ran faster than the original motor. As a result, all
students tried to design their own motor in the next lesson. They found obstacles to
designing a faster motor, such as shock current, slow speed and ease of overheating, but
through scaffolding they were able to fix these problems.