Development and Efficiency of Teaching Materials on Gasoline Engine Job subject code 20101-2001 Development and Efficiency of Teaching Materials on Gasoline Engine Job subject code 20101-2001

Abstract

The purposes of this study were to: 1)develop and test the efficiency of Teaching Materials on Gasoline Engine Job subject code 20101-2001 in Vocational Certificate 2019 by setting the standard performance criterion at 80/80 2) test the effectiveness index of the Teaching Materials on Gasoline Engine Job subject code 20101-2001 in Vocational Certificate 2019 by setting the effectiveness index at > 0.50, and 3) study the satisfaction of the students toward a Teaching Materials on Gasoline Engine Job subject code 20101-2001 in Vocational Certificate 2019.  The sampling group were the 1^st year certificate students in Auto Mechanic at Mahasarakham Technical College for 2^nd semester of academic year 2019. The tool in this study were the achievement tests, Pre-test and Post-test and the questionnaire about student’s satisfactions. The data were analyzed by using Percentage, Mean, Standard Deviation, Discriminant Index, Index of Consistency and Reliability   Research findings were: Teaching Materials on Gasoline Engine Job subject code 20101-2001 in Vocational Certificate 2019 was at 82.68/81.42 in the efficiency, higher than the standard criteria at 80/80. The effectiveness index of Teaching Materials on Gasoline Engine Job subject code 20101-2001 was 0.6637, the students had increased of knowledge 66.37%. The student’s achievement to higher than those before being taught at the 0.05 level if significance. And the student’s satisfactions have rated at high levels for Teaching Materials on Gasoline Engine Job subject code 20101-2001 in Vocational Certificate 2019.