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Instructional Methods and Strategies
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The basic instructional principle used here is that of activity
before content. Students define the problem with the
investigation of ores and metals, explore one partial solution to
the problem, then apply that experience to the exploration of the
actual process used on the Comstock.
Students need to record observations and steps of the
procedure at each step.
During the reading of the ore processing article and relating
that process to the model, they should talk in pairs or groups to
tease out all the relations and increase understanding.
The energy transfer step is an extension of the activities
that enables the student to review the steps in processing ore
and apply the concept of use of energy to each step.
Bybee's 5E model of science education can be found in the
lesson, too: Engage with the exploration of minerals to
have students experience the problem; Explore with the
minerals and the model ore processing; Explain in
comparing the model ore processing and the actual extraction
method used on the Comstock; Elaborate in that comparison
and the application to the energy transfer in mining; Evaluate
in the recording of observations and finally in the energy
transfer portion of the lesson.
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Instructional Methods and Strategies
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