Abstract
This research aims to develop the computer-based instructional media with the interactive tutorial model. This research used the development model design composed by Borg and Gall modified by Sugiyono. The development was conducted through the following steps: (1) potentials and problems; (2) data collection; (3) media design; (4) validation; (5) revision; (6) small group trial; (7) revision; (8) big group trial; and (9) revision. At the stage of potentials and problems, researchers created a need analysis of the results of interviews with mathematics teachers. The media was developed for four meetings, validated by three validators and furthermore revised based on the input from validators. The revised media was tested on small and big groups by students at the Junior High School 8 Pekanbaru. The results of the data analysis showed that the computer-based instructional media with the interactive tutorial model on the coordinate system is valid with the average value of 3.4 and is practical to use by students.
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