Abstract:
The purposes of this research were (1) to construct and validate the efficiency of the Web-Based Instruction on AC circuits, and (2) to compare learning progress of the students with different GPA after using the Web-Based Instruction. The Web-Based Instruction consisted of 5 lessons, 22 objectives, 41 slides, 9 animations and 50 test items. The Web-Based Instruction was applied to 30 students sampled from first year vocational students of Lopburi Technical College, semester 2/2011.
The research results were as follows. The Web-Based Instruction had efficiency of 81/80 which was consistent the predefined criterion 80/80. There was no significant difference at the level of .01 between the students with different GPA who learned by the Web-Based Instruction.