Remedial Instruction in Fundamental Electricity (AC Circuits) for First-Year Vocational Students

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Numchoke Wattananaiya
Somkiat Wuttithammapiwat
คุณัญญา รองศรีนะ
Napat Poolpattana
Chinnapong Lueaithaisong
Jeerawat Permrat
Methapat Deetae
Pattarapong Promsri

Abstract

A strong foundation in mathematics is crucial for students in the Electrical Power Technology vocational certificate program. Proficiency in mathematics is essential for performing electrical calculations. This classroom action research employed a single-group experimental design with post-test-only measurement, focusing on a case study of five first-year vocational students. The research aimed to: (1) evaluate the effectiveness of remedial instruction in AC circuit theory, targeting specific learning objectives not met during regular classes; and (2) assess student satisfaction with this remedial instruction. The remedial instruction was delivered outside of regular class time. The research followed a two-cycle PAOR (Plan, Act, Observe, Reflect) process. Data were collected using (1) a summary document outlining key electrical concepts and (2) practice exercises for electrical calculations. Descriptive statistics were used for analysis. The results showed that the majority of participants achieved scores above 80%. A high level of relative growth score was observed (RGS = 60.73). A statistically significant level of .05 was found between the scores from the two measurement periods, with the second period's scores significantly higher than the first. Furthermore, participant satisfaction with the remedial instruction was very high. (equation=4.6,S.D.=0.54).

Article Details

How to Cite
Wattananaiya, N., Wuttithammapiwat, S. ., รองศรีนะ ค. ., Poolpattana, N. ., Lueaithaisong, C. ., Permrat, J. ., Deetae, M., & Promsri, P. . (2025). Remedial Instruction in Fundamental Electricity (AC Circuits) for First-Year Vocational Students. Vocational Education Innovation and Research Journal, 9(1), 114–126. retrieved from https://so06.tci-thaijo.org/index.php/ve-irj/article/view/278379
Section
Research Articles

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