Visualizing a Collective Student Model for Procedural Training Environments

TL;DR

This paper introduces a visualization tool for a collective student model in 2D/3D virtual training environments, aiding instructors and intelligent tutoring systems to improve teaching strategies and student performance.

Contribution

The paper presents a novel visualization design and a web tool for collective student modeling in complex virtual environments, validated through an experiment improving tutoring strategies.

Findings

The visualization tool helps instructors interpret student behaviors effectively.

Using the tool, tutoring strategies can be adapted to enhance student performance.

The experiment demonstrates improved student outcomes with the visualization-based approach.

Abstract

Visualization plays a relevant role for discovering patterns in big sets of data. In fact, the most common way to help a human with a pattern interpretation is through a graphic. In 2D/3D virtual environments for procedural training the student interaction is more varied and complex than in traditional e-learning environments. Therefore, the visualization and interpretation of students' behaviors becomes a challenge. This motivated us to design the visualization of a collective student model built from student logs taken from 2D/3D virtual environments for procedural training. This paper presents the design decisions that enable a suitable visualization of this model to instructors as well as a web tool that implements this visualization and is intended: to help instructors to improve their own teaching; and to enhance the tutoring strategy of an Intelligent Tutoring System. Then, this paper illustrates, with three detailed examples, how this tool can be used to those educational purposes. Next, the paper presents an experiment for validating the utility of the tool. In this experiment we show how the tool can help to modify the tutoring strategy of a 3D virtual laboratory. In this way, it is shown that the proposed visualization of the model can serve to improve the performance of students in 2D/3D virtual environments for procedural training.