Enhancing Learning Achievement in Thai Language on King Ruang’s Maxims Using Group Investigation Learning Activity and Concept Mapping for Grade 7, Students at Phathumthep Witthayakarn School, Nong Khai Province DOI:

Abstract

This research aims to 1) develop an effective learning management process meeting the 80/ 80 criterion and 2) compare the learning achievement in the Thai language before and after instruction using the group investigation learning process and concept mapping. Cluster random sampling was employed to select a sample of 40 grade 7, students out of 648. The research instruments included 1) five lesson plans on the topic King Ruang’s Maxims 2) five sets of exercises, and 3) a 20-item pretest-posttest learning achievement test. The data were analyzed using mean, standard deviation, and a t-test. The research findings revealed that the learning achievement of grade 7, students in Thai language studies on the topic of King Ruang’s Maxims, using the group investigation learning approach and concept mapping, achieved an efficiency rate of 83.95/ 86.00. This exceeded the established standard criterion and post-learning achievement was significantly higher than pre-learning at the .05 level.