A Comparison of the Learning Achievement before and after Learning of Mathayomsuksa 2 Students in Thai Part of Speech with Learning Management by Using Workbook

Abstract

The purposes of this research are to 1) develop and find efficiency of Mathayomsuksa 2 students’ workbook: Thai Part of Speech with the 80/80 efficiency index 2) compare the learning achievement, before and after study by using workbook and 3) examine Mathayomsuksa 2 students’ satisfaction towards learning management by using workbook. Target groups are totally 15 Mathayomsuksa 2 students in Banmoosi School in the classroom, the second semester of 2023 academic year. The instruments used in this research are 1) Thai Part of Speech workbook created by the researchers 2) lesson plans using Thai Part of Speech workbook 3) 40 - item of the achievement test which is considered, and evaluated index of item objective congruence: IOC by experts 4) 14 – item of satisfaction questionnaire towards learning management by using workbook, and analyzed statistic method, mean (), percentage, deviation (S.D.), and t-test dependent. The findings are 1) the efficiency of Thai Part of Speech workbook for Mathayomsuksa 2 students are 84.38/80.00, according to 80/80 efficiency index 2) the learning achievement after using workbook is significantly higher than before studying at .05 and 3) the satisfaction of Mathayomsuksa 2 students towards using workbook overall is at the highest level.