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Integrating CAD and Orthographic Projection in Descriptive Geometry Education: A Comparative Analysis with Monge’s System

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Udgivet i:Education Sciences vol. 15, no. 11 (2025), p. 1492-1518
Hovedforfatter: Gutiérrez de Ravé Simón
Andre forfattere: Gutiérrez de Ravé Eduardo, Jiménez-Hornero, Francisco J
Udgivet:
MDPI AG
Fag:
Software
Coding theory
Cognition & reasoning
Computer aided design > CAD
Learning
Quantitative analysis
Comprehension
College students
Research design
Cognitive load
Education
Reasoning
Problem solving
Quasi-experimental methods
Orthography
Qualitative research
Geometry
Comparative analysis
High Achievement
Undergraduate Students
Geometric Concepts
Prior Learning
Educational Methods
Computer Assisted Design
Interrater Reliability
Computers
Learning Theories
Performance Tests
Educational Change
Computer Assisted Instruction
Feedback (Response)
Coding
Accuracy
Career and Technical Education
Comparative Education
Outcomes of Education
Engineering Education
Cognitive Ability
Learner Engagement
Educational Strategies
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Resumen:Descriptive geometry plays a fundamental role in developing spatial reasoning and geometric problem-solving skills in engineering education. This study investigates the comparative effectiveness of two instructional methodologies—Monge’s traditional projection system and the CADOP method, which integrates computer-aided design tools with orthographic projection principles. A quasi-experimental design was implemented with 90 undergraduate engineering students randomly assigned to two groups. Both groups followed the same instructional sequence and were evaluated using baseline surveys, rubric-based performance assessments, and post-training reflections. Quantitative analysis included mean comparisons, t-tests, and effect sizes, while inter-rater reliability confirmed scoring consistency. The results showed that CADOP students significantly outperformed those taught with Monge’s method across all criteria—conceptual under-standing, graphical accuracy, procedural consistency, and spatial reasoning—with very large effect sizes. Qualitative data indicated that CADOP enhanced clarity, efficiency, and confidence, while Monge promoted conceptual rigor but higher cognitive effort. The findings confirm that CADOP effectively reduces procedural complexity and cognitive load, supporting deeper spatial comprehension. Integrating CADOP with selected manual practices offers a balanced pedagogical approach for modernizing descriptive geometry instruction in engineering education.
ISSN:2227-7102
2076-3344
DOI:10.3390/educsci15111492
Fuente:Education Database