IM Geo 1.8 Lesson: Using Technology for Constructions

① This example demonstrates how to use dynamic geometry software like GeoGebra to perform traditional compass-and-straightedge constructions, such as constructing perpendicular bisectors, angle bisectors, or equilateral triangles, and to verify the correctness of the construction process. ② Core mathematical concepts include the rules of geometric construction, equivalence of classical constructions, and using software tools for precise construction and dynamic verification. ③ Construction highlights: although no specific commands are listed in the summary, the lesson typically involves GeoGebra objects such as points, segments, circles, perpendicular lines, midpoints, and possibly sliders or loci to observe dynamic changes. ④ Suitable for middle or high school geometry courses, as an introductory lesson integrating technology with mathematics, helping students understand construction principles and enhance hands-on practice.