Research On Instructional Design Based On Problem Chain

The rapid development of science and technology accelerated to the reform of the teaching course.A variety of teaching mode,How to effectively ask questions and to transformate the way of students' learning is becoming the hot spots of frist-line teachers' attention.At present,high school chemistry teachers pay attention to the teaching of problem solving,but the problems are scattered,fragmentry and lack of integration,which seriously affects the development of students' thinking and the improvement of classroom efficiency.The design of a series of problems,such as progressive layers,step by step,and integrity,has important practical significance to promote the students to construct the knowledge structure and improve the teaching efficiency.Chain teaching the theoretical basis from the "problem teaching" and"problem solving","problem chain" teaching has aroused widespread concern in the education sector,the educator mainly study from the chain of teaching strategies,teaching mode,teaching design principle,function etc.Therefore,this paper studies the teaching design of problem.Fristly,This paper defined the concept of the question,the chemistry question and the question chain.secondly,based on the scaffolding instruction theory,constructivism tearning theory and the psychological theory of the Zone of Proximate Development,putting forward the suitable question chain teaching design principle,basic types and implementation strategies according to cognitive level of the high students.on the basis of the theory of "chain" design,the paper designed the two teaching cases.the eight class in the second high school of liaohe oil-field,50 has carried on the teaching practice.Finally,researching experimentally the "chain" design in the way of the questionnaire survey and the statistics of test score,maked a careful analysis and statistics of the result to put forward some lack of the "chain" design and suggestion in researching teaching.