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教学有效性指在教学活动中,教师采用各种方式和手段,用最少的时间、最小的精力投入,取得尽可能多的教学效果,实现特定的教学目标,满足社会和个人的教育价值需求而组织实施的活动。《数学课程标准》在教学建议中指出:“要创设与学生生活环境、知识背景相关的,又是学生感兴趣的学习情境,让学生在观察、操作、猜测、交流、反思等活动中逐渐体会数学知识的产生、形成与发展的过程,获得积极的情感体验,感受数学的力量,同时掌握必要的基
Teaching effectiveness refers to the teaching activities, teachers use a variety of ways and means, with the least time and minimum effort, to obtain as much teaching effectiveness, to achieve specific teaching objectives, to meet the social and individual needs of the educational value and Organized activities. The ”Mathematics Curriculum Standard“ pointed out in the teaching suggestion: ”To create a learning situation that is relevant to students’ living environment and knowledge background and is also of interest to students and gradually allow students to gradually observe, manipulate, guess, communicate and reflect on other activities Understand the process of the generation, formation and development of mathematical knowledge, gain a positive emotional experience, feel the power of mathematics, and master the necessary basic