The Development of Learning Achievement and Science Process Skills with the Method of Organizing Learning STAR Strategy on the Topic of Moles and Chemical Formulas for Mathayomsuksa 4 Students

Abstract

The objectives of this research were: 1) to develop an effective STAR strategy-based learning management approach on the topic of Moles and Chemical Formulas for Grade 10 students with the efficiency criterion of 70/70, 2) to compare students' academic achievement before and after learning about Moles and Chemical Formulas through the STAR strategy-based learning approach, and 3) to compare students' science process skills before and after learning using the STAR strategy-based approach. The sample group consisted of 40 students from Grade 10 in the second semester of the 2024 academic year at secondary school in Mahasarakham Province, selected through cluster sampling. The research instruments included 1) lesson plans, 2) an academic achievement test, and 3) a science process skills test. Data were analyzed using mean, standard deviation, percentage and tested the hypothesis with a dependent sample t-test. The research findings revealed that 1) the STAR strategy-based learning management approach on Moles and Chemical Formulas achieved an efficiency score of 73.11/71.79, which exceeded the specified criterion, 2) students’ academic achievement after the learning was significantly higher than before the learning at a significance level of .05, and 3) students’ science process skills after the learning were significantly higher than before the learning at a significance level of .05.