Abstract:
The purposes of this research were 1) to develop the blended lesson which on the group work ability in The Career and Technology 4 of Matthayom Suksa 5 students 2) to compare students pretest and posttest learning achievement after having the blended collaborative learning on the group work ability in The Career and Technology 4 of Matthayom Suksa 5 students 3) to study the group work ability after having the blended collaborative learning on the group work ability in The Career and Technology 4 of Matthayom Suksa 5 students 4) to study the satisfaction of students on the blended collaborative learning on the group work ability in The Career and Technology 4 of Matthayom Suksa 5 students. The sample group of this study consisted of 30 students studying in The Career and Technology 4 of Matthayom Suksa 5 students, semester 1/2561 in Kings College from the sample random within ten weeks. The instruments of the research were 1) the structured interview form 2) the lesson plans 3) the blended lesson using the collaborative learning on the group work ability in The Career and Technology 4 4) the achievement test 5) the ability assessment form of the group work 6) the questionnaire on students satisfaction on the blended lesson in The Career and Technology 4. The data were the mean, percentage, standard deviation and t-test dependent. The results of the research were 1) the blended lessons efficacy using the collaborative learning on the group work ability in The Career and Technology 4 were 83.33/81.25 which had efficacy higher than criteria setting 80/8o 2) the result of the compare the students learning achievement after the blended collaborative learning on the group work ability at 0.1 level of significance 3) the ability of the group work after the blended collaborative learning on the group work ability in The Career and Technology 4 of Matthayom Suksa 5 students indicated the students the work group ability was good level with the mean = 14.40, S.D. = 0.19 4) the students satisfaction on the blended lesson in The Career and Technology 4 indicated the students satisfaction was more level with the mean = 4.54, S.D. = 0.58