Abstract

The most influential books on geometry are those of Euclid called “Elements”. In our century, in addition to classical learning, various interactive software are used in teaching geometry. Among them, we can mention Geogebra. GeoGebra is an interactive math measurement program that consists of teaching and learning from elementary to university level. This software is offered as a pedagogical and mathematical aid tool. GeoGebra helps in teaching math because using this software, students see different mathematical formulas, algebraic and geometric presentations. In this paper, using GeoGebra software, the pedagogical, methodological, and statistical data into teaching circle properties are presented. The study involved 112 students. Of these 40% excellent, 35% average, 25% below average. The research aims to prepare high school students aged 15-18, from grades 1, 2, 3, and 4 in teaching, working, and explaining geometry through Geogebra software. Special emphasis is placed on the circle properties and their presentations. This content includes the district tangent, the potency, the application of the circle in regular polygons with special emphasis on the inscribed, circumscribed circle in the equilateral triangle, and other important properties.

Highlights

  • The circle is a flat figure of special importance

  • The elements of the circle, the regular polygon inscribed in circle and the circle circumscribed about the regular polygon, represent a very important part in explaining it

  • Can we accidentally find the center of the circumscribed circle? To answer, they have to do all the work themselves

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Summary

Introduction

The circle is a flat figure of special importance. The elements of the circle, the regular polygon inscribed in circle and the circle circumscribed about the regular polygon, represent a very important part in explaining it. We are always looking for a facilitation and tangible examples in teaching and learning. Software is presented to us as the most applicable to students, seeing that more and more students are connected to technology. GeoGebra is a highly used and attractive software tool for students. Students can construct figures and gain a higher understanding while doing it

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