The Development of Small-scale Chemistry Laboratory Directions Integrated with Green Chemistry Principles to Promote Integrated Science Process Skills, Learning Achievement, and Environmental Awareness for Eleventh Grade Students at Assumption College Rayong

Abstract

The purposes of this research were 1) to develop small-scale experimental chemistry kit directions integrated with green chemistry principles on the factors affecting the rate of chemical reactions, 2) to develop small-scale chemistry laboratory directions integrated with green chemistry principles with an effective criteria equal to 75/75, 3) to compare the academic achievement of students before and after learning, 4) to compare the integrated science process skills of students before and after learning, and 5) to compare the environmental awareness of students before and after learning. The sample group consisted of 40 students selected using cluster random sampling from class 5/3 in the eleventh grade at Assumption College Rayong during the second semester of the 2024 academic year. The tools used in conducting the research included 1) small-scale chemistry laboratory directions integrated with green chemistry principles, 2) lesson plans, 3) an academic achievement test, 4) an integrated science process skills test, and 5) an environmental awareness test. The statistical methods used in the research include 1) mean, 2) percentage, 3) standard deviation, and 4) Dependent Samples t-test. The research results are as follows. 1) The trends of chemical reaction results of the small-scale experimental chemistry kits directions integrated with green chemistry principles were not different from standard experimental kits. Small-scale experimental chemistry kits directions integrated with green chemistry principles were used in small-scale chemistry laboratory directions integrated with green chemistry principles 2) The effectiveness of small-scale chemistry laboratory directions integrated with green chemistry principles was the efficiency level is 80.45/78.90. 3) The post-test scores of the achievement were higher than the pre-test scores at the .05 level. 4) The post-test scores of the integrated science process skills were higher than the pre-test scores at the .05 level. 5) The post-test scores on environmental awareness were higher than the pre-test scores at the .05 level.