As part of a study of crayfish, Gillen Brewer's older students are learning how to use compound microscopes. Although these tools require delicacy and persistence, they offer a motivating and engaging experience as they open up a world of scale and detail never before seen. We began by examining the crayfish with magnifying glasses, but decided that more detail and magnification was necessary to continue our study. We began with some direct instruction about the parts of a microscope and how to use it: Next, we practiced with caterpillars and a variety of small creatures and objects to hone our skills. Finally, we placed the crayfish onto our microscopic stages and explored them in detail.
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November 2017
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