The Effect of Using the Instruction Package in Career Subject for Mathyomsuksa 1th

Abstract

The objectives of this research were to 1) develop the Instructional package to be the criterion 80/80; 2) find the effectiveness index of the Instructional package; and 3) compare the achievements before and after learning using the Instructional package. The population consists of students. Mathayomsuksa 1 in the first semester of academic year 2023. All Mathayomsuksa 1/1 students (n=24) were the samples selected by simple random sampling. The research instruments consisted of learning management plans, Instructional packages, and achievement tests. The statistics used for data analysis were percentage, mean, standard deviation, t-test, E1/E2, and E.I. values. The results of this research showed that 1) the efficiency of the instructional package development was 82.12/83.23 which was according to the set criteria; 2) the effectiveness index of the instructional package was 0.7412, confirming that the development of sample students in the research increased by 74.12percent, and 3) a comparison of different achievement levels and test scores before and after learning using instructional package; found that after studying higher than before studying significantly at the .05 level.