Development and Design of Cross-Disciplinary Teaching Activities in Junior High School Mathematics—Taking “Mathematics in Campus Plan” as an Example

跨学科教学不仅能激发学生的学习兴趣，还能帮助学生加深对数学概念和原理的理解，提高他们的数学素养和解决问题的能力。文章基于跨学科教学的理念，融合数学与地理等学科内容，结合“六步项目”教学模式，开发并设计了“校园平面图中的数学”为活动主题的教学案例，教学过程主要包含课外活动探究和课内作品展示与评价两部分，落实“四基”“四能”的获得与发展，发展学生的数学核心素养，以期为跨学科案例教学提供参考。Cross-disciplinary teaching can not only stimulate students’ interest in learning, but also help them deepen their understanding of mathematical concepts and principles, and improve their mathematical literacy and problem-solving abilities. Based on the concept of cross-disciplinary teaching, this paper integrates the content of mathematics, geography and other disciplines, and combines the “Six-step Project” teaching model to develop and design a teaching case with the theme of “Mathematics in Campus Plan”. The teaching process mainly includes two parts: extracurricular activity exploration and in-class work display and evaluation, so as to implement the acquisition and development of “Four Basics” and “Four Abilities”, and develop students’ core mathematical literacy, with a view to providing reference for cross-disciplinary case teaching.