The Exploration And Application Of Ariable Type Teaching In Middle Shool Athematics Teaching

The current variable type teaching in middle school mathematicsteaching is one of the important characteristics, the so-called variant,is from the various changes to provide the materials or problems of thepresent form, make things the essential characteristics appear anddisappear, and the nature of things stay the same way but changes. Sovariable type teaching is through the different angles, and differentsides, different situations, different background of variant that meansstudents effectively deepen understanding and the understanding thenature of mathematical object process. Variable type teaching to helpstudents understand the meaning of knowledge, familiar with themathematical method, and the contact between the knowledge, sums up themathematical laws, improve math skills are of positive significance. Thispaper first introduces research is the practical significance of the typeteaching, this article of the variable type and variable type teachingresearch. Second, in on the basis of existing researches, this paperexpounds the variant and variable type the meaning of teaching, andsystematically summarizes the variable type teaching theory basis:meaningful learning theory, madden variability, of proximal developmenttheory, scaffolding theory, summarizes the variable type teaching shouldbe followed by the five principles: target guiding principles, orderlygraduality principle, principle, explore innovative full effectivenessprinciple, process participation principle. Then, in the junior middleschool math teaching practice, and on the basis of detailed descriptionof the teaching of junior middle school mathematics variant of three mainforms: concept variant, process variable type, application change type,combining with the teaching case analysis shows that by experimentalstudies, students from the experience and academic achievement in two aspects of the junior middle school mathematics variable type teachingeffect of the practice of analysis and evaluation, and points out the useof the teaching of mathematics variant problem. Finally, an example showsthat: change type teaching in junior middle school students training,specific, abstract inverse, decomposition, combination, analogy ofmathematical thinking has certain effect, thus to further research isprospected type teaching.