The Effects of Using Model-Based Instruction in the Topic of the Earth and Natural Resources to Develop Critical Thinking and Learning Achievements of Grade 8 Students at Danmakhamtiawittayakhom School in Kanchanaburi Province

Abstract

          The objectives of this research were to (1) compare critical thinking between before learning and after learning using model-based instruction. of grade 8 students in the topic of the earth and natural resources (2) compare learning achievements in the topic of the earth and natural resources of grade 8 students after learning using model-based instruction compared to the 70 percent criteria and (3) study the relationship between critical thinking and learning achievement of grade 8 students in the topic of the earth and natural resources after learning using model-based instruction.

          The sample used in this research was 39 grade 8 students, semester 2, academic year 2023, Danmakhamtiawitthayakhom school, Kanchanaburi province, obtained by cluster random sampling. The research tools were 8 learning plans using model-based in instruction on the topic of earth and natural resources, totaling 24 hours, a critical thinking assessment form with a reliability value of 0.83 and a science achievement test with a reliability value of 0.84. Statistics used for data analysis included percentage, mean, standard deviation, t-test and correlation.

          The results of the research found that

1.  the of grade 8 students after learning by using model-based critical thinking instruction was significantly higher than before learning at the .05 level
2. Science learning achievement of grade 8 students after learning by using instruction was higher than the 70% criterion with at the .05 level significance of statistical and
3. critical thinking ability and learning achievement of grade 8 students after learning by using model-based instruction was moderate relationship statistically significant at the .05 level.