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本节课开始时,教师有必要作个简短的思想动员,以调动学习上的非智力因素,唤起学生克服困难的勇气,因为学生通过第一章细胞的学习普遍感到高中生物比初中生物的抽象概念多,难度大。要让学生懂得:首先是思想上不畏难,应看清生物学知识不是虚无漂渺的,而是来自生产和生活实际,生命科学又是21世纪的科学主题,其次在战术上要讲究学习方法切勿死记硬背,要让“理性的左脑”与“感知的右脑”联合作战,按高二学生的智力水平,是完全可以理解掌握这些抽象概念的。
At the beginning of this lesson, teachers need to make a short ideological mobilization to mobilize non-intellectual factors in learning and evoke the courage of students to overcome difficulties, because students generally feel that high school biology is better than junior high school biology through the first chapter of cell learning. There are many abstract concepts and it is difficult. Students should understand that: First of all, they should not be afraid of ideological difficulties. They should be aware that the knowledge of biology is not ridiculous, but from the reality of production and life. Life science is the scientific theme of the 21st century. Secondly, it is necessary to pay attention to tactics. Do not memorize, and let the “rational left brain” and the “perceived right brain” jointly fight. According to the high school students’ intelligence level, it is entirely possible to understand these abstract concepts.