Improving Learning Achievement of Plane Materials Through Tangram Media Using the Project Based Learning Model
Authors: Krisdayanti Irene , Murtafiah Wasilatul , Kholifah Titik Siti , Yahya Faridah Hanim 
Published: August 2024

<span class="s17">Learning mathematics that emphasizes understanding concepts and solving problems requires learning media. The use of learning media is still low</span><span class="s17">,</span><span class="s17"><span class="Apple-converted-space"> </span>so learning outcomes are far from<span class="Apple-converted-space"> </span></span><span class="s17">the<span class="Apple-converted-space"> </span></span><span class="s17">minimum completeness criteria (the<span class="Apple-converted-space"> </span></span><span class="s17">student's lowest score</span><span class="s17">)</span><span class="s17">, apart</span><span class="s17"><span class="Apple-converted-space"> </span>from learning media.<span class="Apple-converted-space"> </span></span><span class="s17">Besides</span><span class="s17"><span class="Apple-converted-space"> </span>the media, learning models are<span class="Apple-converted-space"> </span></span><span class="s17">essential</span><span class="s17"><span class="Apple-converted-space"> </span>to<span class="Apple-converted-space"> </span></span><span class="s17">discover</span><span class="s17"><span class="Apple-converted-space"> </span>fun and not<span class="Apple-converted-space"> </span></span><span class="s17">dull mathematics</span><span class="s17">.<span class="Apple-converted-space"> </span></span><span class="s17">This study aimed</span><span class="s17"><span class="Apple-converted-space"> </span>to improve learning achievement in<span class="Apple-converted-space"> </span></span><span class="s17">data-building</span><span class="s17"><span class="Apple-converted-space"> </span>material through tangram media with the<span class="Apple-converted-space"> </span></span><span class="s17">PjBL</span><span class="s17"><span class="Apple-converted-space"> </span>model for class IV at SD Negeri<span class="Apple-converted-space"> </span></span><span class="s17">Gerih</span><span class="s17"><span class="Apple-converted-space"> </span>7</span><span class="s17">, East Java, Indonesia</span><span class="s17">. The research method used was Collaborative Classroom Action Research. The subjects of this study were 23 students in grade IV at SD Negeri<span class="Apple-converted-space"> </span></span><span class="s17">Gerih</span><span class="s17"><span class="Apple-converted-space"> </span>7</span><span class="s17">, East Java, Indonesia</span><span class="s17">,</span><span class="s17"><span class="Apple-converted-space"> </span>in the 2022/2023 academic year. The test results obtained were in the form of pre-cycle class average values of 59.13, 64.78 in the results of the first cycle</span><span class="s17">,</span><span class="s17"><span class="Apple-converted-space"> </span>and 77.82 in the results of the second cycle. It can be concluded that the<span class="Apple-converted-space"> </span></span><span class="s17">PjBL</span><span class="s17"><span class="Apple-converted-space"> </span>learning model and the tangram media<span class="Apple-converted-space"> </span></span><span class="s17">effectively improve</span><span class="s17"><span class="Apple-converted-space"> </span>the achievement results of<span class="Apple-converted-space"> </span></span><span class="s17">fourth-grade</span><span class="s17"><span class="Apple-converted-space"> </span>students at SD Negeri<span class="Apple-converted-space"> </span></span><span class="s17">Gerih</span><span class="s17"><span class="Apple-converted-space"> </span>7</span><span class="s17">, East Java, Indonesia.</span>