Study On The Compiling Strategy Of Pre-class Learning Sheet Based On Students’ Starting Point Of Learning

New curriculum emphasizes the teacher should teach student from their experience,that mean the teacher’s teaching should focus on students’ learning starting point.Starting point of learning refers to the basic knowledge, basic skills, basic thinkingand basic experience which students already grasped or grasped by themselvesthrough preview. Clear starting point of learning can make the teachers understandthe students’ real needs, and determine the teaching key point and difficulty pointwhich can improve the classroom efficiency. Preview study case is an important wayto solve accurately determine the student’s starting point of learning, at the sametime it also provides preview thinking guidance to students’ learning, and it improvesthe efficiency of student’s learning.Therefore, this study which take example by principle for the compilation oflearning case of previous scholars summarizes preview study case writing modelfrom the chemical factual knowledge, theoretical knowledge and skills knowledge:First, the factual knowledge. First, the factual knowledge. We can inspect thestudents grasped of material physical properties by setting the situation; We useclassification and comparison to explore physical chemical properties, that meanclassify new materials from the material composition, valence and the angle ofstructure, then speculate properties of new materials by using connectivity ofmaterial or the properties of materials we knew, finally do the experiments to inspectresult combine with connectivity and features of material.Second, The theoretical knowledge. The students will have a total and deepunderstanding by looking for the key word of conception, the analysis key word, thedifference of similar conception, Teachers can also be based on concept that studentsfind related to the new concept of advance organizer, finally through the"differentiation" gradually "integrated adjustment""induction" method to clarify theconnotation of the relationship between old and new concepts and new knowledge.Third, the skilled knowledge. The factual knowledge and the theoreticalknowledge are basic of learning the skilled knowledge, it needs require chemistrylanguage which based on the understanding, deepen the connotation of experimentalskills, by helping students to build a theory system and shows the chemical solutionto improve students’ chemical calculation problem solving skills.At last, I hope this study can provide the guidance of thinking and materialityhelp to the teacher who writes preview study case.