Structured Input Improves Usability And Precision For Solving Geometry-Based Algebraic Problems

Keywords

Geometry editing; Gesture input; Math learning environment; Sketch input

Abstract

Previous research has shown that sketch-based input is efficient and preferable in the context of algebraic equation solving. However, research has not been conducted to evaluate whether this holds true when involving geometry input to facilitate quantitative problem-solving. We developed a bimodal (graphing geometric shapes and writing algebraic expressions) user interface, in order to conduct a within-subject, controlled experiment with 24 college students and varied two types of geometry input: 1) sketch-based input and 2) structured input. The sketch-based input was significantly faster than the structured input, but there were no significant differences based on perception and cognition. However, after a post-hoc analysis, we found a significant interaction effect on perception between prior knowledge and geometry input. Novice students preferred the sketch-based input, but advanced students preferred the structured input. Our study implies that natural sketch-based input may be less preferable than structured input for geometry-based interfaces toward math problem-solving.

Publication Date

5-2-2017

Publication Title

Conference on Human Factors in Computing Systems - Proceedings

Volume

2017-May

Number of Pages

4692-4702

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1145/3025453.3025468

Socpus ID

85044857893 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85044857893

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