The types of understanding and argumentation deficits have possible implications for teaching. It is recommended that, when applying Faraday’s Law (in the cases of movement emf), the magnetic flow variation through the area swept by the conductor should be calculated. In addition, at least in some cases, problems could be solved using either Faraday’s Law or the Lorentz Force Law, which would demonstrate to students that both laws are equivalent.
The accumulated deficiencies for the four problem situations can be seen in the total score (Table 4). These results, although they might be expected as they had appeared in other research, are very worrying and should be used to initiate changes in the usual teaching by reconsidering some of strategies used in the field of EMI and to emphasize critical thinking and argumentation using empirical evidence and established physics principles.