Drawing Dynamic Geometry Figures with Natural Language

Abstract

This paper presents a tool for drawing dynamic geometry figures by understanding the  texts of geometry problems from common textbooks. With the tool, teachers and students can  construct dynamic geometry figures on a webpage by inputting a geometry problem in natural  language. First a knowledge base for understanding geometry problems is built. With the help of a  knowledge engineering tool InfoMap, geometric concepts are extracted from an input text. The  concepts are then used to output a multi-step JavaSketchpad script that constructs a dynamic  geometry figure step by step. Finally, the system outputs the script as a HTML document that can  be read and visualized with an internet browser.