<![CDATA[The study aims to produce an google sites based learning media on plane figure material at the three grade that is valid, practical, and effectiveness. This type of research is research and development (R&D) with the ADDIE model that have five steps, first analysis, second design, third development, fourth implementation, and fifth evaluation and combined with Tessmer formative evaluation. Data collection techniques in this study were using questionnaries, tests, and interviews. The results of media product validation meet the “very valid” criteria with a average value 87,95% from the three expert validator. The assessment on the practicality of the media has “very practical” criteria with a average value 86,85%, the effectiveness of the media from the students test results obtained the percentage of student completeness that is 77,27% (effective). So the developing google sites based learning media on the plane figure is declared valid, practical, and effectiveness. Keyword: Plane Figure, Google Sites]]>
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