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如果教师按部就班地上生物课,势必使学生感到单调乏味,那么,如何引起学生的兴趣?笔者认为有选择地增加一些内容,效果较好。 1 讲点轶文趣事如讲解植物激素时,我讲了美国使用植物激素——脱落酸打败越南人的故事。讲遗传学时,讲陈佩斯和阮强相象的原因;用一厘米头发破案的生物学原理;恐龙蛋中DNA片段发现的生物学意义以及达尔文近亲结婚的婚姻趣事。这些有趣轶事与课文内容有一定的联系,有助于学生理解内容,激发学生学习的兴趣。
If teachers do the biology lesson step by step, it is bound to make students feel tedious, then, how to arouse the interest of students? I believe that the selective increase of some content, the effect is better. When talking about plant hormones, I told the story of the US defeat of the Vietnamese by the plant hormone-abscisic acid. Speaking of genetics, Speaking Chen Peisi and Ruan Qiang resembles the reason; with a centimeter biological principles of hair detection; dinosaur eggs found in the biological significance of DNA fragments and Darwin married marriage marriage. These interesting anecdotes have some connection with the content of the text, which helps students to understand the content and stimulate students' interest in learning.