| The new curriculum reform issues a challenge to knowledge-based traditional classroom,stating clearly that "forming the basic concepts related to chemical sciences" in the course objectives, which sounds the clarion call of action for the teaching based on concepts construction. "Primary battery" is a teaching and leaning difficulty, so I choose "primary battery" to do a practice, hoping to obtain some conclusions and effective suggestions.After the overview of content and relating teaching design of "primary battery" and based on the teaching theory of concepts building, this thesis analyze successively,forming a teaching design based on concepts construction. Then, I carry out a teaching practice. Practice results show that it is effective.The study contains nine sections. Details as follows:First : reasons for the select.Second: the literature overview. Analyze the research of the teaching content and the existing teaching design about "primary battery", found that make a teaching design of "primary battery" based on concepts construction is necessary and feasible. Furthermore it provides some revelation.Third: the aim and tasks.Fourth: theoretical basis. Draw the implication and basic parts of teaching design, analyzing the basic concepts of chemistry and its classification.Fifth: course content analyze. analyze the place and function of "primary battery" in curriculum and textbooks and the arrangement of textbook knowledge content. Then analyze the value of the knowledge. Lastly, I present a framework of knowledge.Sixth: analysis of learning conditions. Through questionnaires and interviews of teachers, I determine students’ knowledge bases and I summarize the the teaching difficult, causes and solving strategies.Seventh: instructional design. First, design the teaching programs of "primary battery" on the basis of the above work, then modify the teaching programs through student questionnaires and teacher interviews.Eighth: implementation of teaching.Choosing the experiment class and control class,conduct the teaching practice,test the teaching effect with test volume, the results show the effectiveness of teaching based on concepts construction.Ninth : the conclusion and deficiencies of the thesis. |