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在数学教学中恰当地运用比较法,不但能突出教学的重点,简化某些教学环节,而且有利于学生理解和掌握概念,提高解题能力和发展思维能力。下面谈谈比较法在初中数学教学中的应用。(一)用比较法教学,加深对概念的理解。学生通过概念比较,可以加深对概念的理解和记忆,明确概念的内涵和外延,从而能正确地运用概念。例如,教学一元二次方程定义时,要求学生与一元一次方程定义比较;讲授分式概念时,
Appropriate use of comparative method in mathematics teaching can not only highlight the focus of teaching, simplify certain teaching processes, but also help students understand and grasp concepts, improve problem-solving abilities and develop thinking skills. Here to talk about the application of comparative law in junior high school mathematics teaching. (a) Teaching with comparative methods to deepen the understanding of concepts. Through conceptual comparisons, students can deepen their understanding and memory of concepts, and define the connotation and extension of concepts so that they can use concepts correctly. For example, when teaching a quadratic equation definition, students are required to compare with a one-dimensional equation definition; when teaching fractional concepts,