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教学目的 (1)使学生了解关于文昌鱼的生活习性、形态特征和内部结构的基础知识,并掌握脊索动物门的主要特征。(2)使学生了解文昌鱼在科学研究上的重要意义。教学方法采用程序作业教学法,结合观察文昌鱼的外部形态,师生共同讨论。材料文昌鱼(每桌一条)、放大镜。 (一)导言同学们,前面我们已学过不少动物,有水生的、陆生的,还有寄生的。它们大小不一,千姿百态,生活在地球上的各个角落。大家都感到
Objectives of teaching (1) To enable students to understand the basic knowledge of the living habits, morphological characteristics and internal structure of amphioxus, and to master the main features of the vertebrate phylum. (2) Make students understand the important significance of the scientific research of amphioxus. The teaching method adopts the program operation teaching method, combined with the observation of the external morphology of the fish, and teachers and students discuss together. Material amphioxus (one per table), magnifying glass. (A) Introduction The students, we have learned a lot of animals in the past, there are aquatic, terrestrial and parasitic. They are of various sizes and are varied and live in all corners of the earth. Everyone feels