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对实验“探究馒头在口腔中的变化”从材料、试剂和实验方法等方面做了一些必要的改进,使实验更加安全,所取材料本土化、低成本、用量少,步骤简化易操作,缩短了实验时间,效果显著,从而推动实验教学有效顺利地完成。
For the experiment “exploring the changes in the skull in the mouth” some necessary improvements have been made in materials, reagents, and experimental methods to make the experiment safer. The materials taken are localized, low cost, and less in usage. The steps are simple and easy. The operation shortens the experiment time and has a significant effect, thereby promoting the effective and successful completion of experimental teaching.