Effect of 5Es Inquiry-based Learning of Chemical Equilibrium on Mental Models, Chemistry Achievement and Satisfaction of Grade 11 Students

Abstract

The purposes of this research were as following: 1) to study of chemical equilibrium on mental models, 2) chemistry achievement, and 3) satisfaction of grade 11 students using 5Es inquiry - based learning on chemical equilibrium. The sample of the study was thirty - two stu-dents of grade 11/1 in the second semester of the academic year 2016 at a School in Pattani Province, Thailand. They were selected by Simple Random Sampling and instructed via 5Es Inquiry - based for 18 hours. The research instruments consisted of lesson plans for 5Es Inquiry - based on Chemical Equilibrium, mental model activity sheets, achievement test and questionnaires on satisfaction towards the instruction. The experimental research was conducted using one group through time - series research design. The results found that the student’s mental models showed an upward trend and the mean scores were differenced at the statistical significant level of .01, however the results of the third with the fifth and the fourth with the fifth of mental models were not differenced. Moreover, the data of achievement test, questionnaires on satisfaction towards the instruction were analyzed by mean and standard deviation. The results were shown as follow. The student’s mean score of the post - test on chemical achievement was higher than mean score of the pre - test at the statistical significant level of .01. The students’ satisfaction towards 5Es Inquiry - based learning was at highest level.