Design-based research on ia3-l manual polyvinyl chloride (pvc) bender for improving hands-on learning in technical education/ Vill Joseph H. Umali, Janelle F. Selosa, Xylle Jan B. Trinidad, Danika A. Maestre, and Kenny H. Merto.--

Bachelor's thesis

College Of Industrial Education.--
Bachelor of science in industrial education major in industrial arts: Technological University of the Philippines,
2025.

Includes bibliographic references and index.

There is a growing need to enhance how practical competencies are taught in
basic electricity, as traditional instructional methods often fall short in engaging students
and developing essential hands-on skills. This study explores the potential of a newly
designed PVC conduit bender as an instructional tool to enhance students’ practical
learning experiences. Using the Design-Based Research (DBR) framework, the
researchers aimed to design, develop, and evaluate the tool among 3rd and 4th Year
BSIE students at the Technological University of the Philippines – Manila.
In the first phase, Analysis of Practical Problems, the study identified the specific
difficulties students encounter when bending PVC conduits during electrical laboratory
sessions, revealing the inadequacy of current instructional methods. The second phase,
Design and Development, led to the creation of a PVC conduit bender that integrates
practical bending exercises with theoretical instruction. The third phase, Iterative Testing
and Refinement, showed positive results in terms of the functionality and accessibility of
the product. In the fourth phase, Derivation of Design Principles, key guidelines were
formulated to inform the development of future instructional tools in technical education,
particularly in bending PVC conduit.
The findings confirm that the PVC conduit bender enhances students’ hands-on
learning and engagement in laboratory classes. The study recommends further
refinements, particularly in improving the heating element and bending accuracy, to
maximize its instructional impact.