| Because of the rapid progress of our era, the overlay of instruction is larger and larger. The difference between students in contemporary classroom is becoming increasingly diverse, showing from a lot of aspects, as follows: culture background, readiness levels, learning profiles, and interests, and so on. The aim of ability-oriented education is to pay attention to every student, to promote every student's development, to heighten nationality making across-the-aboard. But in regular classroom, most of teachers take such a strategy: teaching to the middle. So, the non- intellect characters of students and the difference between students are neglected. The pitfall of one-size-fits-all instruction is criticized abroad. So, recently educational authorities and teachers have dedicated breakthrough the shackle of traditional teaching. Differentiated instruction in regular classroom setting provides a crucial platform to create opportunities for success for all students. Many experience of successful instruction innovation illuminates that the supervising of instruction mode is the best approach to innovate the classroom teaching. So, the author takes "construction and practice of differentiation instruction mode in chemistry classroom" as research subject.Differentiation instruction has a centuries-old foretime, but a short history. There was tenet in antiquity education which showed in history literature, but the whole conception of differentiation instruction formed in the afternoon of 20th century. The core of differentiation instruction is to take response action according to the learner' discriminating need. At the present time, a great deal of research on differentiation instruction have been putting in practice in home and abroad. Through investigating the literature, author summaries the prevent harvest. Differentiation instruction can be performed in a variety of ways, divided into three types: renovation of teaching organization, renovation of teaching means, renovation of teaching modes. The research on differentiation instruction modes is sparsity, and the main conclusion can be expatiated as follows: differed the process of classroom instruction, combination of differentiation instruction methods (the elements of instruction mode are shortage); the cover of instruction modes is limited, with no course feature. Consequently, the author accords to the process of constructing mode and the feature of chemistry classroom to construct mode, with the breakthrough of differentiation instruction as main thread.From the view of methodology, there are two methods to construct mode: syllogism and induction. Via research into the workings of individual learning styles and the Howard Gardner's theory of the multiple intelligences and so on, the author finds four breakthrough points in differentiation instruction: making the differentiation aims, implementing differentiation instruction, providing differentiation learning time, unrestricted teaching organization. The author adopts deductive method, with the breakthrough of differentiation instruction as main thread, extruding the chemistry feature, to construct four modes: leading thinking via questions, diagnoses and modulation, collaboration learning, self-determination learning- production setting out. Each mode is analyzed in six ways: theory foundation, teaching aim, operation process, realization condition, instruction evaluation, application extension. If implementing the differentiation instruction in real classroom, we can accord to this sequence: differentiation measure-instruction design-classroom teaching -estimate- self-reflection.In order to validate the validity of these four modes, the author chooses the students in Grade1, Class 6 in Yucai middle school in Xi'an in Shaanxi as investigation object, and carries research for a month. There are 3 steps: measure forward, experimentation practice, measure back. The investigation tools are questionnaire on learning styles, questionnaire on learning status in chemistry class, questionnaire on learning interest, interview syllabus with teachers and so on. According to the information deriving from measure forward, the author and the teacher make the teaching plan together to apply the mode. The teacher carries out the teaching plan, meanwhile the author takes stock of classroom, with doing notes. According to classroom observation, interview with teacher, schoolwork analysis and data contrast, it can be concluded safely that differentiation instruction plays a significant role in accelerating students' development generally. Of course, there are still pitfalls in modes application which should be solved in subsequence study.To deepen differentiation instruction and implement differentiation instruction in a large scale, there are several suggestions: to cultivate the students' ability of selfcognization, to lead teachers specialization development, to attach importance to differentiation instruction innovation, to strengthen the guidance and management of differentiation instruction. |