2010年9月21日 星期二

Activity 1 (Sept 14)

The learning package is about Magnetic Induction. The first acitivty involves students to record the findings for factors that affect the magnitude of magnetic induction. Accordingly, students are to deduce the formula regarding the magnitude of the induced emf. The data are collected through an interactive simulation, with which students can explore and get the result of the experiment immediately. As mentioned in the previous post, the use of simulation can greatly shorten the time needed for experimentation, and thus shorten the feedback loop and allow more time and opportunities for students to explore, and therefore is an invaluable tool in helping students to learn more effectively and efficiently.

With the data collected from the simulation, students then try to identify the relationship between pairs of variables, and accordingly construct the formulae relating them. They do it first by graphically observation and examination, and then through more rigorous mathetmatical verification. Through such an exercise, hopeful students can have an idea of what real-world scientists do in the actual research, i.e. to identity pattern or relationship from experimental finding. This gives students an authentic situation which they should treasure.

The use of Excel allows an easy and fast way for studetns to find out relationship among variables. Moreover, students were required to write a report to summarize their findings. Not only this activity can train their ability in synthesizing the result, it also provides students an opportunity to communicate in scientistic terms.

The website is also provided with further URL for reference, which students can explore for further information, if there is the need, or if they are really interested in the field. This allows room for learner's diversity.

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