The Development of English Vocabulary Learning Achievement Using Blended Learning for Pratom Suksa 6 The Development of English Vocabulary Learning Achievement Using Blended Learning for Pratom Suksa 6

Abstract

The purposes of the research were to 1) develop Prathom Suksa 6 students’ vocabulary learning achievement in school under Bangkok metropolis authority before and after using blended learning and 2) develop the students ‘satisfaction towards blended learning. The instruments used for gathering data consisted of 1) lesson plans using blended learning 2) An English vocabulary achievement test; and 3) a questionnaire on satisfaction towards blended learning. The data were analyzed by mean, standard deviation, t-test of Dependent Sample and Effect Size Calculator. The results of the study were 1) The students’ vocabulary learning achievement after studying through blended learning was higher than that before students’ studying at the 0.05 level. 2) The students ‘satisfaction towards the blended learning were at a highest level (average scores = 4.51). The effect size was found that effect size of the experiment was 2.110 (Cohen's d = 2.110), indicating that the learning achievement after studying was higher than before (Large effect size)