Accession Number:

ADA276381

Title:

A Multi-Level Dynamic Instructional Planner for an Intelligent Physiology Tutoring System

Descriptive Note:

Interim rept.

Corporate Author:

ILLINOIS INST OF TECH CHICAGO DEPT OF COMPUTER SCIENCE

Personal Author(s):

Report Date:

1992-04-01

Pagination or Media Count:

37.0

Abstract:

This paper describes the design and development of an instructional planner for an intelligent tutoring system for cardiovascular physiology that assists medical students to learn the causal relationships between the parameters of the circulatory system, to understand how a negative feedback system works, and to solve problems involving disturbances to he system. The instructional planner is responsible for deciding what to do at each point during a tutoring session. It integrates opportunistic control with sophisticated instructional planning, combining lesson planning with discourse planning. The lesson planning is organized in three levels goal generation, determination of planning strategies, and choice of tactics to refine the goal into subgoals. The mixed-initiative discourse planning is implemented using a two level approach pedagogical decision making at the upper level and tactical discourse state-based planning at the lower level in its discourse management network. It generates plans dynamically based on the student model, monitors their execution, repairs plans when necessary, and replans when the student asks a question or makes a comment.

Subject Categories:

  • Humanities and History
  • Medicine and Medical Research

Distribution Statement:

APPROVED FOR PUBLIC RELEASE