教学作为一种有明确目的的认知活动,其有效性是广大教师所共同追求的。有效教学是教师在达成教学目标和满足学生发展需要方面都成功的教学行为,是教学的社会价值和个体价值的双重表现。教师应巧设教学情境,让学生在有趣情境中“玩”数学,在生活情境中“找”数学,在激励情境中“促”数学,在实践情境中“做”数学,从而提高课堂实效。 Teaching as a clear purpose of cognitive activities, the effectiveness of the majority of teachers are the common pursuit. Effective teaching is a teaching behavior that teachers succeed in reaching the goal of teaching and meeting students’ development needs. It is a dual manifestation of social value and individual value of teaching. Teachers should set up teaching situations so that students can “play” mathematics in interesting situations, “find” math in life situations, “promote” math in motivation situations, and “do ”Mathematics, thereby enhancing the effectiveness of the classroom.