计算机程序设计ICAI教学决策实验系统研究

The Research of Computer Programming ICAI Tutor Strategy Experimental System

PAR方法是一种实用统一的形式化程序设计方法 ,并有以PAR方法为指导思想的计算机程序设计ICAI模型。本文实现该模型的教学决策部分。首先基于建构主义等认知理论以及程序设计知识的自身特点 ,研究设计了领域知识库、学生知识库和教师知识库 ,并按照启发式教学方式 ,归纳整理出一些教学决策规则 ,选用适当的方式组织、描述相关知识、规则 ,建立系统决策模型。已经在PC机上用Java语言结合Access数据库实现了此实验系统。此实验系统能够根据配套的测试实验系统的测试结果 ,选取相应的教学策略和教学内容 。

PAR method is a practical unified formal programming approach. There is an ICAI model of computer programming directed by PAR method.The paper constructs the teaching decision part of the model.Based on the cognitive theories as constructivism etc., and the peculiar features of programming,not only designs the knowledge libraries of domain, students and teachers, but also employs elicitation method in teaching and generalizes some rules of teaching decision. Besides realizes the experimental system in computer using Java and Access. The experimental system can select corresponding tutor strategy and contents in base of the test results, generalized by relevant test experimental system, and realizes to teach students in accordance with their aptitude in some extent.