Design Of Science Teaching In Junior High School Based On Big Ideas

Science education is a holistic education with physics,chemistry,biology,geography and other natural disciplines as its main content,and involves technology,history of science,philosophy of science and other disciplines.In recent years,scholars have proposed to integrate scientific knowledge with the concept of "less but more refined",to help students achieve knowledge transfer,reduce students' learning burden,and establish effective teaching.In order to promote the concept of concept landing in the classroom,the author puts forward the research topic of "junior high school science teaching design based on bid ideas".The research of this paper mainly elaborates the research background,significance,research status at home and abroad,research methods and ideas of the big ideas through literature analysis.This paper puts forward a design model of science teaching in junior middle school based on general big ideas,which includes seven links: establishing the knowledge structure system of general big ideas,analyzing the teaching materials,analyzing the learning situation,raising basic questions,pointing to the learning objectives,teaching strategies and teaching evaluation of general big ideas.And take a general big ideas of scientific knowledge and a general big ideas of science as examples to illustrate the teaching design of this model.Finally,through the form of isomerism of the same topic,the teaching practice of teaching design cases based on general big ideas is studied.The results of teaching practice show that the teaching design based on big ideas can help teachers to use textbooks in many dimensions,provide clues for teaching construction centered on big ideas,and promote students to achieve effective learning.It also shows the feasibility of the teaching design model based on big ideas proposed in this study.