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《减数分裂与有性生殖细胞的成熟》教案执教：银川唐徕回民中学姜杰简评：银川师范学校张世琦教学目的１．使学生理解减数分裂的概念；２．使学生掌握精子的形成过程方面的基础知识。教学重点精子的形成过程及有关概念。教学难点精子形成过程中染色体行为和数目变化的特点...
“Miscellosis and Sexual Germ Cell Maturation” lesson plans teach: Yinchuan Tang Yao Huimin Middle School Jiang Jie Comment: Yinchuan Normal School Zhang Shiqi Teaching Objectives 1. Make students understand the concept of meiosis; 2. Allows students to master the basics of sperm formation. The teaching process focuses on the formation of sperm and related concepts. Difficulties in teaching the characteristics of chromosome behavior and number changes during sperm formation...