Of 40 groups, 20 (50%) were successful at designing motors with different speeds;
19 (47.5%) completed their design of the motor but it did not rotate because of problems in
the design of the coil, such as the fact that the wire was not scratched, some wires were not
connected, and so on; and one group gave up on designing a motor and preferred to use a
simple one because the members were all female and did not have experience with DC
motors. This shows that experience and prior knowledge is important in improving other
skills in learning (Dochy, De Ridjt, & Dyck, 2002; Hailikari, Nevgi, & Lindblom-Ylanne, 2007).