A Theoretical and Practical Investigation of Large Unit Instructional Design Based on Project-Based Learning

项目式学习是一种将学生置于实际项目中的学习模式，强调学生主动参与、协作探究和问题解决能力的培养。该教学模式通过实践活动促进学生的深入学习和综合能力的提升。大单元教学作为一种创新的教学模式，旨在通过整合课程内容，强化学科的内在逻辑和整体性，以培养学生的核心素养。该教学模式强调以学科的核心素养为导向，整合课程资源和内容，构建跨学科的知识体系，提高教学效率和学生的综合能力。基于《义务教育数学课程标准(2022版)》对项目式学习与大单元教学的融合要求，本文以七年级几何图形初步为载体，构建PBL驱动的大单元教学模式，并通过书架设计案例验证其可行性。Project-based learning is a learning mode that places students in actual projects and emphasizes the cultivation of students’ active participation, collaborative inquiry and problem-solving abilities. This teaching mode promotes students’ in-depth learning and comprehensive ability through practical activities. Large-unit teaching, as an innovative teaching mode, aims to strengthen the internal logic and wholeness of the discipline through the integration of course content in order to cultivate students’ core literacy. This teaching mode emphasizes the core literacy of the discipline as the guide, integrates curriculum resources and contents, constructs an interdisciplinary knowledge system, and improves teaching efficiency and students’ comprehensive ability. Based on the integration requirements of the Compulsory Education Mathematics Curriculum Standards (2022 Edition) for project-based learning and large-unit teaching, this paper takes Preliminary Geometry in Grade 7 as a carrier to construct a PBL-driven large-unit teaching model and verifies its feasibility through the case of bookshelf design.