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This article through analyzes to classroom instruction valid Jan, unifies the common classroom instruction pattern, right “the cooperation exchange” becomes a mere formality, “the question situation to establish” the gaudy divergence, the teaching media to use unreasonable and so on low efficiencies or the invalid classroom instruction phenomenon analysis, inquired into that under the new curriculum background, uses the resonsideration teaching effectively, enhances the classroom instruction valid strategy, thus promotes the student validity study, promotion mathematics pondered, improves the classroom instruction quality.

Based on the Analysis of the effectiveness of classroom instruction, combined with common classroom teaching model of "cooperation and exchange," a mere formality, "the creation of situational questions" garish digress, teaching media, such as inefficient use of unreasonable or invalid analysis of the phenomenon of classroom teaching to e