Design and implementation of an interactive Christmas tree as a STEAM educational tool Authors Fernando Ulpiano Pantoja-Agreda Universidad Nacional Abierta y a Distancia https://orcid.org/0000-0002-3449-9626 Oscar Alberto Jaramillo-Alzate Universidad Nacional Abierta y a Distancia https://orcid.org/0000-0003-4335-6368 DOI: https://doi.org/10.33571/rpolitec.v22n43a6 Keywords: Educational opportunities, Electronics, STEAM, Systems design, Interdisciplinary research Abstract An educational need lies in the integration of the parts of a whole—education, pedagogy, and didactics. This article presents the design, implementation, and evaluation of an educational project that combines electronics, computer-aided design, and 3D printing, following the STEAM (Science, Technology, Engineering, Arts, and Mathematics) methodology for the model's design. The project consists of creating a 500 mm tall interactive Christmas tree, equipped with LEDs and controlled by a circuit based on the NE555 timer. This work demonstrates how practical projects can integrate various disciplines and motivate students toward more active and participatory learning. Article Metrics Abstract: 67 PDF (Español (España)): 32 PlumX metrics Author Biographies Fernando Ulpiano Pantoja-Agreda, Universidad Nacional Abierta y a Distancia Ingeniero Mecánico, Doc. Pensamiento Complejo, docente Universidad Nacional Abierta y a Distancia Oscar Alberto Jaramillo-Alzate , Universidad Nacional Abierta y a Distancia Ingeniero Electrónico; Especialista en Ciencia de Datos y Analítica, docente Universidad Nacional Abierta y a Distancia References [1] Pantoja-Agreda, F. U., & Bohorquez-Orozco, A. I. (2025). Diseño de un laboratorio tipo contenedor para el estímulo del razonamiento en la Fundación Educativa Almalegre. Revista Politécnica, 21 (41), 90-101. https://doi.org/10.33571/rpolitec.v21n41a5 [2] ÇAKIROĞLU, Ü., & ER, B. (2023). A model to develop activities for teaching programming through metacognitive strategies. Thinking Skills and Creativity, 48, 101279. https://doi.org/10.1016/j.tsc.2023.101279 [3] Lu, S.-Y., Lo, C.-C., & Syu, J.-Y. (2022). Project-based learning-oriented STEAM: the case of micro–bit paper-cutting lamp. International Journal of Technology and Design Education, 32 (5), 2553-2575. https://doi.org/10.1007/s10798-021-09714-1 [4] Jiang, J., Xie, W., Wang, S., Zhang, Y., & Gao, J. (2023). Assessing team creativity with multi-attribute group decision-making in a knowledge building community: A design-based research. Thinking Skills and Creativity, 48, 101304. https://doi.org/10.1016/j.tsc.2023.101304 [5] Demir, C., French, B. F., & Hand, B. (2023). Cross-cultural critical thinking profiles: A multigroup latent profile analysis. Thinking Skills and Creativity, 48, 101286. https://doi.org/10.1016/j.tsc.2023.101286. [6] Bertão, R. A., Jung, C. H., Chung, J., & Joo, J. (2023). Design thinking: A customized blueprint to train R & D personnel in creative problem-solving. Thinking Skills and Creativity, 48, 101253. https://doi.org/10.1016/j.tsc.2023.101253 [7] Pérez-Fabello, M. J., & Campos, A. (2023). Influence of spatial imagery and imagery control on geometric form location in paintings. Thinking Skills and Creativity, 48, 101298. https://doi.org/10.1016/j.tsc.2023.101298 [8] Bedewy, S. E., & Lavicza, Z. (2023). STEAM + X - Extending the transdisciplinary of STEAM-based educational approaches: A theoretical contribution. Thinking Skills and Creativity, 48, 101299. https://doi.org/10.1016/j.tsc.2023.101299. [9] Repetier Software - repetier.com [Accessed 10-08-2025]. (s.f.). https://www.repetier. com/ TINA-TI Simulation tool | TI.com — ti.com [Accessed 10-08-2025]. (s.f.). https: //www.ti.com/tool/TINA-TI [10] Peña Rodríguez, F., & Montiel Chamorro, M.L. (2023). La educación en Colombia como herramienta para mejorar las condiciones sociales y culturales. Sophia, 18(2). https://doi.org/10.18634/sophiaj.18v.2i.1182 Downloads PDF (Español (España)) Published 2026-06-16 How to Cite Pantoja-Agreda, F. U., & Jaramillo-Alzate , O. A. (2026). Design and implementation of an interactive Christmas tree as a STEAM educational tool. Revista Politécnica, 22(43), 83–93. https://doi.org/10.33571/rpolitec.v22n43a6 More Citation Formats ACM ACS APA ABNT Chicago Harvard IEEE MLA Turabian Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Issue Vol. 22 No. 43 (2026): January - June 2026 Section Articles License Copyright (c) 2026 Fernando Ulpiano Pantoja-Agreda, Oscar Alberto Jaramillo-Alzate This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. _