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

在高中生物课上，很少有观察动物组织的实验研究。在本实验中，发展了一种简单的方法来观察动物组织，使用冷冻组织标本的包埋介质和花椰菜茎作为它们的保持器。将样品用包埋介质冷冻在西兰花茎中，用剃刀刀片手工切片。用此玻片可观察睾丸、小肠及鸡胚的组织结构。实验结果表明，该方法对高中生物课堂教学是有效的。

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.