《植物的茎》(第七课)属观察课课型。整个教学过程是以学生观察植物的茎在整株植物中的位置和作用为起点,逐步引导学生认识各种各样的茎。从而形成茎的概念,学会按茎的软硬不同,把植物分为木本植物和草本植物等认识过程来组织教学的。在指导学生观察,比较各种植物茎的异同的基础上,进一步培养学生的分类能力,发展他们初 “Plant Stem” (Lesson 7) is an observation lesson. The whole teaching process takes students to observe the position and function of the stem of the plant in the whole plant as a starting point and gradually guide the students to know a variety of stems. Thus forming the concept of stems, learn different according to the soft and hard stems, the plant is divided into woody plants and herbs and other cognitive processes to organize teaching. In guiding students to observe and compare the similarities and differences of various plant stems, based on further training of students in the classification ability to develop their early