变学习为探究，化实践为真知——以《三角形全等的判定》为例
Change Learning into Inquiry, Turn Practice into True Knowledge—Taking “The Judgment of Triangle Congruency” as an Example

课堂改革的宗旨是改变传统的教学模式，由教师主导变为学生主体的课堂，倡导学生主动参与、勤于动手、合作交流，使学生在“学中做，做中学”，培养学生数学研究性学习的能力。本文以“三角形全等的判定”为例，将课堂分为巧创情境，引发思考、动手操作，激发思维、合作交流，问题攻破、巩固延伸，能力生成四个环节，在探究性学习中建构“三角形全等”判定条件的深层认识，实现思维进阶，同时为动手操作的数学探究教学带来一次有益尝试。
The purpose of classroom reform is to change the traditional teaching mode, from teacher-led to student-centered classroom, advocating students to actively participate in, diligent in hands-on, cooperation and communication, so that students can do in learning, learn by doing, and cultivate students’ ability of mathematics research-based learning. Taking the judgment of “triangle congruency” as an example, this paper divides the classroom into four links: creating situation skillfully, triggering thinking and hands-on operation, stimulating thinking and cooperation and communication, solving problems, consolidating and extending, and generating ability. In the inquiry learning, we should construct the deep understanding of the judgment conditions of “triangle congruency”, realize the thinking progression, and bring a useful attempt to the mathematics inquiry teaching of hands-on operation.