The Development of Microlearning Lessons on Reading and Drawing Projection Views for Machine Shop Students

The objectives of this research were to 1) develop and determine the instructional efficiency of a
microlearning lesson on reading and drafting orthographic projections, 2) compare students’ learning
achievement before and after instruction with the developed lesson, and 3) examine learner satisfaction with
the lesson. The research instruments comprised the microlearning lesson on reading and drafting orthographic
projections, a lesson quality evaluation form, an achievement test, and a satisfaction questionnaire. The sample consisted of forty first year vocational certificate students in the Machine Shop Program, selected by cluster random sampling by drawing one intact class from three classes. Data were analyzed using percentage, mean, standard deviation, and a paired-sample t-test.
The results showed that the multimedia quality of the lesson was rated at a very high level (M = 4.58, S.D. = 0.36). The instructional efficiency was 84.05 over 83.50, which met the established criterion of 80/80. Students’ posttest scores were significantly higher than their pretest scores at the .05 significance level ( t = 82.703, p < .05, Cohen’s d = 13.08) . Learner satisfaction with the lesson was at the highest level overall (M = 4.58, S.D. = 0.52). In conclusion, the microlearning lesson on reading and drafting orthographic projections is suitable for vocational instruction. Its concise and focused content, together with mobile accessibility, enables learners to study and review anytime and anywhere, thereby supporting effective development of knowledge and skills among machine shop students.