Enrichment of the contents to study animal tissues in Biology class/Development and application of the brief method to observe animal tissues

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There have been few experimental studies that observed the animal tissues in the biology class in high schools. In this experiment, a brief method to observe the animal tissues was developed using both an embedding medium for frozen tissue specimens and a broccoli stem as their holder. The samples frozen with the embedding medium in the broccoli stem has been sectioned with a razor-blade by hand. The tissue structures of the testis and the small intestine, as well as chick embryos could be observed with the slide prepared for a microscope. Thus, it was shown that the present method was good for the biology class of high schools.