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有效教学是目前实践中存在的主要问题,也是理论界探讨的重要课题.解决问题的钥匙应该是一题多解与一题多变.一题多解的教学能优化思维品质,推动探索创新,使知识融会贯通,有利于提高学生的创造性.教学中应该精讲多练,质疑辩论,师生共探.一题多变的教学有利于提高学生的创造性及运用数学知识去分析实际问题的能力,有利于激发学生的创造性及运用数学知识去解决实际问题的能力.变化教学可从一般化,变图,变式,变条件和题组教学入手.
Effective teaching is currently the main problem in practice, and it is also an important topic discussed by the theoretical community. The key to solving the problem should be multiple solutions and one change. The teaching of multiple solutions can optimize the quality of thinking and promote exploration and innovation. The integration of knowledge is conducive to improving students’ creativity. Teaching should be refined and practiced more, debates debated, teachers and students explore together. One changeable teaching is conducive to improving students’ creativity and the ability to use mathematical knowledge to analyze practical problems. It is conducive to inspire students’ creativity and the ability to use mathematics knowledge to solve practical problems. Change teaching can start from generalization, variable graph, variant, variable condition and question group teaching.