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教学目的使学生掌握受精和双受精的概念及过程,理解果实和种子的形成过程;培养学生的观察能力及理论联系实际的学风;向学生渗透事物发展变化的观点。教学重点胚珠的结构;受精的概念和双受精的过程以及果实和种子的形成。教学难点双受精过程教学方法以讲述为主并结合谈话法。授课时数一课时。教学过程师:我们已学习了花的结构。现在我们以桃花为例一起来复习花的结构。(利用投影片,让学生上前指出桃花各部分的结构名称。)
The purpose of teaching is to enable students to master the concepts and processes of fertilization and double fertilization, to understand the process of fruit and seed formation, to develop students’ abilities of observation and theory to relate to the actual style of study, and to infiltrate the viewpoint of students in the development and change of things. Teaching focuses on the structure of ovules; the concept of fertilization and the process of double fertilization and the formation of fruits and seeds. Difficult teaching double fertilization process teaching methods to tell the main combination of conversation method. Teaching hours a lesson. Teaching Process Engineer: We have learned the structure of flowers. Now let’s review the flower’s structure together with peach. (Use the slide show to show the structure names of the various parts of the peach.)