数学建模活动是对生活实际问题进行数学抽象,用数学语言表达问题、用数学方法创设模型解决问题的活动。如何在教学过程中发展学生数学核心素养是当下研究的热点。本文依据情境教学理念,启发学生思考、把握事物间的关联,将其应用在《普通高中数学课程标准(2017年版2020修订)》的“包装彩绳”教学中,以期促进学生数学建模核心素养的形成与发展,最终解决实际问题。Mathematical modeling activity is a mathematical abstraction of the actual problems of life, expressing the problem in mathematical language, creating a model to solve the problem with mathematical methods. How to develop students’ mathematical core literacy in the teaching process is the hot spot of research nowadays. Based on the concept of situational teaching, this paper inspires students to think, grasp the connection between things, and applies it to the teaching of “Packaging Colored Ropes” in the “General High School Mathematics Curriculum Standard (2017 Edition, 2020 Revision)”, in order to promote the formation and development of students’ core literacy in mathematical modeling and ultimately solve the actual problem.