Construction and Application of Foreign Language Teaching Aid System Based on Knowledge Visualization

In order to realize the relevance and visualization of knowledge, this paper presented a teaching aid system to visu-alize the knowledge points of foreign language, and described the verified system function through teaching practices. First, we constructed a teaching aid system with knowledge visualization function. i.e., the system visualized the relevance between knowl-edges and dynamically presented and compared between knowledge points by knowledge map. Second, we built a foreign language knowledge database that includes the needed grammars and vocabularies, and then created a technical knowledge map for knowledge relevance. Finally, we applied the system to teaching practice. Through the investigation of the understanding de-grees of knowledge points and the analysis of questionnaires, we found that the system effectively promoted the relevance and reconstruction of knowledge points, deepened the understanding and communication, so as that promoted the learning initiative of students.