Instructional Design of Logarithmic Function in High School Based on GeoGebra—Taking “Image and Properties of Logarithmic Functions” as an Example

文章研究了基于GeoGebra软件的高中对数函数教学设计。针对对数函数教学的难点，文章提出利用GeoGebra软件来增强教学的直观性和互动性，动态模拟各种参数的变化过程，研究结合理论，设计翻转课堂与协作学习活动，使“数”与“形”完美结合。教学设计通过GeoGebra的动态演示功能，帮助学生深入理解对数函数的图像、性质及应用。This paper studies the teaching design of logarithmic functions in senior high school based on the GeoGebra software. Aiming at the difficulties in the teaching of logarithmic functions, this paper proposes to use the GeoGebra software to enhance the intuitiveness and interactivity of teaching, and dynami-cally simulate the changing process of various parameters, design flipped classroom and collaborative learning activities based on constructivist theory, so as to perfectly combine “numbers” and “shapes”. Through the dynamic demonstration function of GeoGebra, the teaching design helps students to have an in-depth understanding of the graphs, properties and applications of logarithmic functions.