Development of Chemistry Terms Understanding on Mole and Chemical Formula of 10th Grade Students Using The 5R Instructional Model

Abstract

The purposes of this study were 1) to study the understanding in chemistry terms on Mole and Chemical Formula of 10th-grade students using the 5R instructional model, 2) to compare understanding in chemistry terms on Mole and Chemical Formula of 10th-grade students before and after learning using the 5R instructional model. The study was conducted based on Kemmis and McTaggart’s action research consisting of 4 experimental cycles. The samples of this research were 32 of 4/7classroom at PSU Wittayanusorn School, Songkhla using the cluster random sampling. The instruments used for collecting data were 1) 4 lesson plans using the 5R instructional model, and 2) the chemistry terms understanding test which two-tier multiple-choice test. The collected data were analyzed by percentage, arithmetic mean, standard deviation, and t-test. In addition, conversation analysis was used for qualitative data.
The results of the study revealed that: The students could improve their chemistry term understanding from cycle 1 to cycle 4 continuously. Moreover, they also developed all components of chemistry term understanding; choice, translation, and applying of the chemistry term. The chemistry term understanding of students after obtaining the 5R Instructional model was statically higher than before at .05 level significance.