Abstract

The purposes of the study were to examine the effectiveness of small-scale chemistry laboratory kits on chemistry preservice teachers’ teaching competencies and to examine the effectiveness of small-scale chemistry laboratory kits on learners’ science competencies. The target group consisted of (1) 20 fourth-year preservice chemistry teachers who were undergoing teaching practicum in schools and (2) 300 Grade 11 students from 10 partner schools in the Professional Teacher Development Network of Mahasarakham Rajabhat University. The research instruments included: 1) a learning management plan with small-scale chemistry laboratory kits, (2) the teaching competency assessment for preservice chemistry teachers, and (3) the science competency assessment for students. Data were analyzed using percentage, mean, and standard deviation. The results revealed that the overall teaching competency of preservice chemistry teachers using the small-scale chemistry laboratory kits was at a very high level (x̅ = 4.63, S.D. = 0.486) Additionally, the overall scientific competency of students who received instruction using the small-scale chemistry laboratory kits was as at a high level (x̅ = 2.65, S.D. = 0.478).

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