Using ornaments to enhance students^ proving skill in geometry Joko Suratno
Department of Mathematics Education, University of Khairun, Ternate, Indonesia
Abstract
There are a large number of geometry ornaments that we can find in everyday life. On the other hand, the use of these ornaments in mathematics learning, especially geometry, was still very limited. Geometric patterns or ornaments that there can be used as a source of learning mathematics that are full of creativity. Students who learn through these ornaments will become more active and increase their interest in the learning activities. Besides, learning with ornament media will enhance students^ creativity in making new ornaments, making problems, and solving them with various approaches. Ornaments can also be used as a tool to develop students^ skills in proving. Proof is an important part of mathematics. Proof is a tool for understanding mathematics. However, many students have difficulties to learn proof. Most students cannot construct a proof. It might be possible to define learning environments for mathematics classroom that are apt to enhance students^ proving competencies. This study is literature review about who to proof geometry properties through the activity of constructing geometry objects or ornaments using geometry software. Interactive geometry software (IGS) is also called Dynamic Geometry Environments (DGEs) is a computer program that allows user to create and manipulate geometric objects. Cabri II Plus is one example of IGS that is specialized in two-dimensional programs from around 30s of similar software . This interactive geometry software has several advantages including being able to make learning geometry more meaningful, can justify some concept errors, and the numerical and numerical capabilities of a computer also provide a rich learning environment so students can experiment. Exploration experience using this software also has a good effect on students^ mathematical proof. Apart from that, working with interactive geometry software has several advantages compared to working manually, including in terms of accuracy and time.
