境脉式视域下初中数学问题情境教学实施的思考探讨
Reflections and Discussion on the Implementation of Problem-Situation Teaching in Junior High School Mathematics from the Perspective of Contextual Pulse

境脉式教学强调在真实或模拟的情境中进行教学，使学生能够在情境中发现问题、提出问题并解决问题。在初中数学教学中，通过创设与学生生活紧密相关的问题情境，能够激发学生的学习兴趣，提高他们的参与度和主动性，从而更好地掌握数学知识并应用于实际生活中。在阐述境脉式教学理论的内涵基础上，分析指出当前初中数学问题情境创设中存在着教师问题情境教学意识与能力欠缺、情境创设选择不当、组织和评价不到位等问题，提出了以知识框架培养“知识境脉”、以具体复杂问题情境构建“经验境脉”和以实践活动和恰当评价丰富“学习境脉”等教学改革与实施策略。
Situational teaching emphasizes teaching in real or simulated situations, enabling students to discover, raise, and solve problems in the situation. In junior high school mathematics teaching, by creating problem situations closely related to students’ lives, students’ interest in learning can be stimulated, their participation and initiative can be improved, they can better master mathematical knowledge and apply it to real life. On the basis of expounding the connotation of situational teaching theory, this paper analyzes and points that there are some problems in the current creation of problem situations in junior high school mathematics, such as the lack of teachers’ awareness and ability of situational teaching, improper selection of situational context for creation, inadequate organization and evaluation of questions. Strategies for teaching reform and implementation are proposed, including cultivating “knowledge veins” through knowledge frameworks, constructing “experience veins” through specific and complex problem situations, and enriching “learning veins” through practical activities and appropriate evaluation.