Improving Students’ Conceptual Knowledge in Online Distance Learning through the Use of Micro-Lectures: A Photosynthesis Example


cognitive load theory
online distance learning

How to Cite

Francisco Jr. , L. M., & Prudente, M. S. (2022). Improving Students’ Conceptual Knowledge in Online Distance Learning through the Use of Micro-Lectures: A Photosynthesis Example. Innovative Technology and Management Journal, 5(1). Retrieved from


The shift to online distance learning due to the COVID-19 pandemic presented a challenge to develop instructional materials that could compensate for the limitations of the prevailing learning modality. Micro-lectures are short instructor-made videos that are meant to deliver lessons in ways that do not overwhelm the learners' working memory in understanding conceptually challenging topics such as photosynthesis. This action research used a Quasi-experimental mixed-method approach through micro-lectures in teaching photosynthesis to an intact group of 60 grade 12 STEM students. The instruments and methods used were pre-test and post-test, survey forms, journal entries, and focus group discussions. The results showed that watching micro-lectures positively affected students' test performance and knowledge gain in the different concepts in photosynthesis. Students view micro-lectures as an effective learning material appropriate for online learning due to their ability to declutter and segment the lessons, enhance engagement levels, provide a sense of teacher presence, and encourage flexible learning.



Alsaeed, N. H. (2017). Wish You Were Here: A Psychological Analysis Using Atkinson-Shiffrin Memory Mode. Journal of Literature and Art Studies, 7(5). doi:10.17265/2159-5836/2017.05.004

Atkinson, R., & Shiffrin, R. (1968). Human Memory: A Proposed System and its Control Processes. Psychology of Learning and Motivation, 89-195. doi:10.1016/s0079-7421(08)60422-3

Ayres, P., & Paas, F. (2007). Can the cognitive load approach make instructional animations more effective? Applied Cognitive Psychology, 21(6), 811-820. doi:10.1002/acp.1351

Bruggen, J. V., Kirschner, P., & Jochems, W. (2002). External representation of argumentation in CSCL and the management of cognitive load. Learning and Instruction, 12(1), 121-138. doi:10.1016/s0959-4752(01)00019-6

Cai, M., Li, D., & Li, X. (2016). Application Research of “Micro Lecture” Based on “Shadow Teaching”. International Journal of Information and Education Technology, 6(12), 976-979. doi:10.7763/ijiet.2016.v6.828

Chick, R. C., Clifton, G. T., Peace, K. M., Propper, B. W., Hale, D. F., Alseidi, A. A., & Vreeland, T. J. (2020). Using Technology to Maintain the Education of Residents During the COVID-19 Pandemic. Journal of Surgical Education, 77(4), 729-732. doi:10.1016/j.jsurg.2020.03.018

Clark, R. C., Nguyen, F., & Sweller, J. (2006). Efficiency in learning: Evidence-based guidelines to manage cognitive load. San Francisco: Jossey-Bass.

Cook, M. (2011). Teachers' Use of Visual Representations in the Science Classroom. Science Education International, 22(3), 175-184. Retrieved from:

Cowan, N. (2001). Metatheory of storage capacity limits. Behavioral and Brain Sciences, 24(1), 154-176. doi:10.1017/s0140525x0161392x

DepEd Order No. 12 s. 2020. (2020, June 19). Retrieved from

Draus, P., Curran, M., & Trempus, M. (2014). The Influence of Instructor-Generated Video Content on Student Satisfaction with and Engagement in Asynchronous Online Classes. MERLOT Journal of Online Learning and Teaching, 10(2), 240-254.

EDUCAUSE. (2012, November 01). 7 Things You Should Know About Micro-lectures. Retrieved May 15, 2020, from

Fox, K., Bryant, G., Lin, N., & Srinivasan, N. (2020). Time For Class: Covid-19 Edition, Part 1: A National Survey of faculty during COVID-19. Tyton Partners and Every Learner Everywhere.

Gavin, E., Mooney Simmie, G., & O'Grady, A. (2015). Identification of Misconceptions in the Teaching of Biology. Higher Education of Social Science, 8(2). Retrieved from:

Gerjets, P., & Scheiter, K. (2003). Goal configurations and processing strategies as moderators between instructional design and cognitive load: Evidence from hypertext-based instruction. Educational Psychologist, 38(1), 33–41.

Gurung, R. A. R., & Stone, A. (2020, September 14). You Can’t Always Get What You Want and It Hurts: Learning During the Pandemic.

Hazaymeh, W. A. (2021). EFL Students’ Perceptions of Online Distance Learning for Enhancing English Language Learning During Covid-19 Pandemic. International Journal of Instruction, 14(3), 501-518. doi:10.29333/iji.2021.14329a

Hake, R. R. (1998). Interactive-engagement versus traditional methods: A six-thousand-student survey of mechanics test data for introductory physics courses. American Journal of Physics, 66(1), 64-74. doi:10.1119/1.18809

Hegarty, M. (2004). Dynamic visualizations and learning: Getting to the difficult questions. Learning and Instruction, 14(3), 343-351. doi:10.1016/j.learninstruc.2004.06.007

Höffler, T. N., & Leutner, D. (2007). Instructional animation versus static pictures: A meta-analysis. Learning and Instruction, 17(6), 722-738. doi:10.1016/j.learninstruc.2007.09.013

Kaltura. (2015). The State of Video in Education 2015: A Kaltura Report. Retrieved May 20, 2020, from

Kizilcec, R. F., Bailenson, J. N., & Gomez, C. J. (2015). The instructor’s face in video instruction: Evidence from two large-scale field studies. Journal of Educational Psychology, 107(3), 724–739.

Kurt, H., Ekici, G., Aktaş, M., & Aksu, Ö. (2013). The Concept of Photosynthesis Which is an Indicator of Life in Plants: A Cognitive Structure Study. American-Eurasian Journal of Agricultural and Environmental Science, 13, 1207-1231.

Liu, X., & Wang, L. (2013). The Analysis on Systematic Development of College Microlecture. Higher Education Studies, 3(6). doi:10.5539/hes.v3n6p65

Marmaroti, P., & Galanopoulou, D. (2006). Pupils Understanding of Photosynthesis: A questionnaire for the simultaneous assessment of all aspects. International Journal of Science Education, 28(4), 383-403. doi:10.1080/09500690500277805

Mayer, R. E. (2014). Cognitive theory of multimedia learning. In R. E. Mayer (Ed.), The Cambridge handbook of multimedia learning (pp. 43–71). Cambridge University Press.

Mayer, R.E., & Moreno, R. (1998). A Cognitive Theory of Multimedia Learning: Implications for Design Principles. CHI 1998. Retrieved from:

Mayer, R. E., & Moreno, R. (2003). Nine Ways to Reduce Cognitive Load in Multimedia Learning. Educational Psychologist, 38(1), 43-52. doi:10.1207/s15326985ep3801_6

Maziriri, E. T., Gapa, P., & Chuchu, T. (2020). Student Perceptions Towards the use of YouTube as An Educational Tool for Learning and Tutorials. International Journal of Instruction, 13(2), 119-138. doi:10.29333/iji.2020.1329a

Mcgrew, L. A. (1993). A 60-second course in organic chemistry. Journal of Chemical Education, 70(7), 543. doi:10.1021/ed070p543

Miller, G. A. (1956). The magical number seven, plus or minus two: some limits on our capacity for processing information. The Psychological Review, 63(2), 81–97.

Paas, F., Renkl, A., & Sweller, J. (2004). Cognitive Load Theory: Instructional Implications of the Interaction between Information Structures and Cognitive Architecture. Instructional Science, 32(1/2), 1-8. doi:10.1023/b:truc.0000021806.17516.d0

Pintrich, P. R., & Schunk, D. H. (2002). Motivation in education: Theory, research, and applications. Upper Saddle River, NJ: Merrill.

Purcell, K. (2013, October 10). Online Video 2013. Retrieved from:

Scagnoli, N. I., Mckinney, A., & Moore-Reynen, J. (2015). Video Lectures in eLearning. Handbook of Research on Innovative Technology Integration in Higher Education Advances in Higher Education and Professional Development, 115-134. doi:10.4018/978-1-4666-8170-5.ch006

Seethaler, S., Burgasser, A. J., Bussey, T. J., Eggers, J., Lo, S. M., Rabin, J. M., . . . Weizman, H. (2020). A Research-Based Checklist for Development and Critique of STEM Instructional Videos. Journal of College Science Teaching, 50(1).

Shieh, D. (2009, March 6). These Lectures Are Gone in 60 Seconds. Retrieved from:

Song, Y. (2016). The Application of Microlecture in College English Teaching Process in China. Open Access Library Journal, 03, 1-6.

Sweet, D. (2014). Micro-lectures in a Flipped Classroom: Application, Creation and Resources. Mid-Western Educational Researcher, 26, 52-59. Retrieved from:

Sweller, J. (2003). Evolution of human cognitive architecture. Psychology of Learning and Motivation Psychology of Learning and Motivation Volume 43, 215-266. doi:10.1016/s0079-7421(03)01015-6

Tekkaya, C., Ozkan, O., and Sungur, S. (2001) Biology Concepts Perceived as Difficult by Turkish High School Students. Journal of Hacettepe University Faculty of Education, 21, 145-150.

Van Merriënboer, J. J., & Sweller, J. (2005). Cognitive Load Theory and Complex Learning: Recent Developments and Future Directions. Educational Psychology Review, 17(2), 147-177. doi:10.1007/s10648-005-3951-0

Wright, L. K., Fisk, J. N., & Newman, D. L. (2014). DNA → RNA: What Do Students Think the Arrow Means?. CBE life sciences education, 13(2), 338–348.

Yeboah, O. S. (2010). The effect of computer simulation on the teaching and of photosynthesis at the senior high school level in the Accra Metropolis [Unpublished thesis]. University of Education, Winneba. Retrieved from:

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