This study attempted to determine the influence of prior knowledge in mathematics of students on learner-interface interactions in a learning-by-teaching intelligent tutoring system. One hundred thirty-nine high school students answered a pretest (i.e., the prior knowledge in mathematics) and a posttest. In between the pretest and posttest, they…

A course in computer programing is being developed as a vehicle for research in tutorial modes of computer-assisted instruction. Methods for monitoring and aiding the student as he works on interesting programing problems are employed. The problems are individually selected via an optimization scheme based on a model of the student's ability and…

A program was developed to use the PLATO IV system of the University of Illinois to help students solve typical programing problems. The program tries to approximate a near-ideal situation in which each student receives correction of logical errors and comments on good programing practice as he goes along in a one-on-one tutorial environment. The…

Research constructed a computer-assisted instruction (CAI) tutor which could transmit problem solving heuristics, choose examples, handle examples from a range of students, and learn superior student heuristics. Using a student subject model and tutorial strategy, an experiment was conducted with 284 problems. Subject response data indicated the…

A brief overview of CHEMEX--a problem-solving, tutorial style computer-assisted instructional course--is provided and sample problems are offered. In CHEMEX, students receive problems in advance and attempt to solve them before moving through the computer program, which assists them in overcoming difficulties and serves as a review mechanism.…

Interpreting information regarding health risks, crime statistics, and government polls requires some ability to use and interpret probabilities. Studies have shown that even after training or coursework in probability and statistics, people still have many difficulties solving probability problems. The thesis of this document is that helping…

This study manipulated the timing and control of error feedback in problem solving and examined their effects on skill acquisition by 40 undergraduate students learning to program in the computer language Lisp under four error feedback conditions. These four conditions included two types of symbol-by-symbol feedback that vary in content, a…

A computer-assisted instructional program used at the United States Naval Academy to provide students in introductory physics with practice in problem-solving is described. The author first discusses the rationale for using a time-shared, tutorial approach and presents the steps involved in building a tutorial problem drill. Following this, the…

Automated Student Modelling explicates reasoning strategies, the representation of procedural skills, and underlying misconceptions as manifested in errors. A diagnostic model, based on a "procedural network" as opposed to a "semantic network," is presented which provides a technique both for modelling the underlying cognitive processes of a…

A small-group mathematical problem-solving tutorial treatment with explicit instruction including transfer to novel problems was evaluated with 40 students. On word problems and transfer word problems, tutoring effected reliably stronger growth, although effects on real-world problem solving, while moderate to large, were not statistically…

Design techniques for generative computer-assisted-instructional (CAI) systems are described in this report. These are systems capable of generating problems for students and of deriving and monitoring solutions; problem difficulty, instructional pace, and depth of monitoring are all individually tailored and parts of the solution algorithms can…

This final report summarizes research findings and presents a model for generative computer assisted instruction (CAI) with respect to its usefulness in the classroom environment. Methods used to individualize instruction, and the evolution of a procedure used to select a concept for presentation to a student with the generative CAI system are…

To explore the problem of designing an automated system for instruction in programing, and to study the problem-solving behavior of students, computer programs written by 40 college students as part of a CAI course in Algebraic Interpretive Dialogue were analyzed. The self-contained course consisted of 50 tutorial lessons; the analysis covers…

This research-based review discusses effective computer applications for students with mental disabilities. Most computer-based instruction currently in use is of a drill-and-practice variety, which is needed to develop fluency in basic academic skills. Studies conducted on math fluency indicate that when students are using counting strategies to…

The development of templates for computer-assisted language learning (CALL) is discussed, based on experiences with primarily linear multimedia tutorial programs. Design of templates for multiple-choice questions and interactive tasks in a prototype module is described. Possibilities of enhancing interactivity by introducing problem-oriented…