在数学课内外 ,学生使用信息技术的机会越来越多 .信息技术确实有纸笔工具无法比拟的优势 ,例如呈现丰富的图例 ,描绘复杂的图形 ,展现不同数学表示之间的关系 ,提供动态的数学学习环境等等 .当我们将信息技术的使用整合到几何课程中去的时候 ,应当考虑一个问题 :如何使用计算 There are more and more opportunities for students to use information technology in and outside of mathematics classes. Information technology does have advantages that paper and pen tools cannot match, such as presenting rich illustrations, depicting complex graphics, showing relationships between different mathematical expressions, and providing dynamics. Mathematics learning environment, etc. When we integrate the use of information technology into geometry courses, we should consider a question: how to use calculations