金蝉脱壳——利用矛盾情境转变学生的概念

Do a Quick Change——Changing students’ concepts by using contradictory situations

"金蝉脱壳"出自《三十六计》,比喻留下表面现象,实际上脱身逃走。科学概念包括科学的观念和对科学的看法,小学科学教育的目的是使学生具有科学概念。很多学生在学习科学概念前已经具有科学前概念,那么在教学中教师如何促使学生科学概念的转变呢?实施"金蝉脱壳"策略,设置具体的问题情境,使学生亲历构建科学概念的过程,能帮助学生有效建构科学概念。

"The golden cicada comes out of the shell"comes from the thirty six strategies.It is a metaphor for leaving a superficial phenomenon and actually escaping.Scientific concepts include scientific concepts and views on science.The purpose of primary school science education is to make students have scientific concepts.Many students have pre scientific concepts before learning scientific concepts.How can teachers promote the transformation of students′scientific concepts in teaching?The implementation of the"golden cicada shelling"strategy and the setting of specific problem situations enable students to experience the process of constructing scientific concepts,which can help students construct scientific concepts effectively.