Improving students' concepts and confidence level in learning photosynthesis through 3-minute micro-lectures
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ID: 287615
2021
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Abstract
The shift to online distance learning due to the pandemic presented a challenge to develop learning materials that could compensate for the limitations of the learning modality. Micro-lectures are short instructor-made videos that meant to deliver lessons in ways that do not overwhelm the learners’ working memory in processing information. This action research, using a Quasi-experimental mixed method approach, implemented the use of micro-lectures in teaching photosynthesis to an intact group of sixty grade-12-STEM students to see its effect on their concepts and confidence levels in answering the concept tests. The instruments used were pre-test and post-test with confidence ratings and survey forms. The results showed that watching micro-lectures had a positive effect on students’ test performance resulting to medium gain based on Hake’s classification. There was also significant difference between pre-test and post-test scores based on paired t-test. Confidence increased for majority of the participants in pre-test vs post-test with significant difference as implied by the results of Wilcoxon Signed- Rank test. In investigating the relationship between confidence ratings and test score, the use of Spearman’s rank order showed that there was no correlation between pre-test scores and its confidence ratings, while there was weak correlation between post-test scores and its confidence ratings. This was further analyzed by determining the bias scores in the post-test which revealed overconfidence and underconfidence among students. The data from survey, journal entries, and FGD indicated that students view micro-lectures as an effective learning material that declutter the lessons for better understanding and its segmentation encouraged a more fragmented and flexible way of learning. Moreover, the researcher’s account of the development of micro-lectures proved that there are no limitations to making and sharing instructional videos since the common multimedia devices are sufficient, and the constraint to its wide adoption is familiarization.
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| Authors | Francisco Jr., Leonardo M |
| Journal | Malay Journal |
| Year | 2021 |
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| Keywords | Keywords not found |
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