Through teaching methodologies, different ways to explain Ohm's law may be applied. By using an audiovisual resource as video clips are, depending on the kind of students to take the lesson, the message could be assumed by them in different levels of cognition.
A first example of explanation could be a plain explanation, based directly on the Ohm's law formula.
A second example is based on the application of the explanation by using the law directly applied to circuits
A third example, only visual and textual with no sound or voice, introduces the making of an experiment with the previous presentation of the devices required, then assembling them together with the proper measurement devices and finally, with the retrieved data from voltmeter and ammeter let students to get the resistance by inductive method.
A four example, my preferred type for students to be used to understand how to deal with the formula, magnitudes, units and effects, shows the needed visual tools, in order to put them together. The same way the student will do later alone in his/her study room.
Anyway, some people like the teacher Daniel Sullivan, tries to analyze the considerations to take before explaining Ohm's law in order to let students to achieve significant learning. His considerations are based on the fact that people sometimes dismiss the law, or teach it poorly using outdated methods.
No comments:
Post a Comment