教学生学习《用茎繁殖植物》,到室外去做一做,看一看,可取得室内教学所达不到的效果。教学过程如下: 课前准备:布置学生课前观察哪些植物是用根、茎繁殖的?要学生准备:月季、葡萄、爬山虎、仙人掌、意杨等植物的茎;小刀、小铲。老师准备:桃、梨、柑桔嫁接的复印资料;花盆(带土)、枝剪、喷水壶。 一上课就请同学们说用根、茎繁殖的植 Teach students to learn “to reproduce plants with stems,” to do the outdoors to do a look, can achieve the effect of indoor teaching. The teaching process is as follows: Pre-class preparation: Arrange the students to observe before the class which plants are rooted, stem breeding? Want students to prepare: roses, grapes, ivy, cactus, poplar and other plant stems; Teacher Preparation: Peach, pear, citrus grafted copy material; flower pots (with soil), branches and cutters, spray cans. A class to ask the students to say root, stem breeding plant