【案例背景】细胞是科学(牛津版)《细胞与生殖》单元的核心概念,让学生借助显微镜来认识细胞是大多数生命体的基本结构功能单位是科学课程标准对此单元主题的要求之一。“细胞的结构”是单元教学的重难点,上好这一课对学生理解细胞为什么是大多数生命体的基本结构与功能单位、初步了解生物体形态结构与功能相适应的生物学观点具有极其重要的意义,同时也是后续“生命的诞生与成长”学习内容的必要基础,在单元教学内容中具有承上启下作用,观察、描述、感受应是教学的重点。事例一:面向生活、面向学生,在轻松活泼的氛围中接受实验规范、自律生活行为师:在之前的两节显微实验课上,老师发 Case Background Cells are the core concept of the “Cell and Reproductive” unit of Science (Oxford), allowing students to recognize that cells are the basic structure of most living organisms using microscopes. Functional units are one of the requirements of the science curriculum standard for this unit theme . “The structure of the cell” is the unit difficult point of teaching, a good lesson for students to understand why the cell is the basic structure and function unit of most living organisms, preliminary understanding of biological morphology and biological function of the biological point of view Is extremely important and also the necessary basis for the follow-up “learning of the birth and growth of life.” It plays an important role in the unit teaching content. Observation, description and feeling should be the focus of teaching. Example 1: life-oriented, students, in a relaxed and lively atmosphere to accept experimental norms, self-discipline of life Behavior: In the previous two micro-experiment class, the teacher made