The Study of Learning Achievement and Experimental Skills for High Vocational Certificate 1st Year Students in Titration by Blended Learning Integrated with Inquiry Based Learning

The purpose of this research was to study the learning achievement, experimental skills and students' satisfaction regarding to the learning and teaching management of blended learning integrated with inquiry based learning approach in the topics of titration. The samples of this research were 10 High Vocational Certificate 1^st year students, who have studied in the secondary semester of the academic year 2021 by purposive sampling. The research tools used include 5 lesson plans based on the blended learning integrated with inquiry based learning approach, achievement test, experimental skills evaluation form, online lessons through Google classroom and satisfaction evaluation form. The statistic methods used for data analysis were average, standard deviation, and t-test. The results of this research showed that the learning achievement average scores of the High Vocational Certificate 1st year students after being instructed by blended learning integrated with inquiry based learning approach (28.80 ± 7.81) were statistically significantly higher than that before being instructed by blended learning integrated with inquiry based learning approach (12.70 ± 3.30) at the 0.05 level. The percentage of experimental skill score was 75.44 % and students' satisfaction were found to be 4.69 ± 0.22 at the highest level.