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化学概念是学生形成化学素养的基础,是反映化学事物及其产生变化的本质特征.概念教学时,应抓住化学概念凸显的关键注释,充分发挥化学实验形象、直观的教学功能,使学生在记忆深处形成化学概念.教学中,我们既要注意概念形成的过程性,又要注意概念教学的科学性,利用演示实验,模拟实验等教学手段帮助学生正确领会概念的内涵和外延,形成正确、清晰、深刻的化学概念.
The concept of chemistry is the basis of students’ formation of chemical literacy and the essential feature of chemical things and their change.Conceptual teaching should grasp the key annotations of chemical concepts, give full play to the experimental image of chemistry and the intuitive teaching function, In memory, we not only pay attention to the process of conceptual formation, but also pay attention to the scientific nature of the concept of teaching, the use of demonstration experiments, simulation experiments and other teaching tools to help students correctly understand the concept of connotation and extension to form a correct , Clear, profound chemistry concept.