Effects of Using Instructional Package in Career Subject for Mathayomsuksa 3rd

Abstract

          The purposes of the research were to 1) develop the Instructional Package to be the criteria 80/80; 2) compare the achievement before and after learning using the Instructional Package and 3) find the effectiveness index of Instructional Package. 394 students in Rattanaburi school in mathayomsuksa three: in the first semester of the academic year 2022 were population. All mathayomsuksa 3/2 students (n=21) were the sample groups selected by simple random sampling. The research instruments consisted of learning management plans, Instructional Package, and achievement tests. The statistics used for data analysis are percentage, mean, standard deviation, t-test, E1/E2, and E.I.
          The research result found that:
          1. the efficiency of Instructional Package development is 82.04/83 which was higher the criteria set
          2. 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
          3. The effectiveness index of Instructional Package is 0.6948, confirming that the students in the research progressed 69.48 percent.