APPLICATION OF DISCOVERY LEARNING MODEL WITH CONCRETE MATERIALS TO IMPROVE MATHEMATICS LEARNING ABOUT PLANE FIGURES TO FOURTH GRADE STUDENTS OF SD NEGERI 2 TAMANWINANGUN IN ACADEMIC YEAR OF 2019/2020.
Authors: Safitri Rezkia Widya , Wahyudi Wahyudi , Ngatman Ngatman 
Published: September 2021

<p><em>The </em><em>objectives of the research</em><em> </em><em>were</em><em>: (1) describ</em><em>ing</em><em> the steps </em><em>to</em><em> the application of Discovery Learning model with concrete m</em><em>aterials</em><em>, (2) improv</em><em>ing mathematics</em><em> learning about </em><em>plane figures</em><em> through Discovery Learning model with concrete m</em><em>aterials</em><em>, (3) analy</em><em>zing</em><em> </em><em>obstacles</em><em> and solutions </em><em>of</em><em> </em><em>applying </em><em>the Discovery Learning model with concrete m</em><em>aterials</em><em>.</em></p><p><em>Th</em><em>e</em><em> research </em><em>was</em><em> a collaborative classroom action research (CAR) conducted in three cycles</em><em>.</em><em> </em><em>There were</em><em> two meetings in each cycle</em><em>. A meeting consisted of</em><em> planning, implementing, observing, and reflecting. The subjects </em><em>were</em><em> 25 students</em><em> of fourth grade of SD Negeri 2 Tamanwinangun in academic year of 2019/2020</em><em>. The data used in the form of qualitative data </em><em>were</em><em> the application of the Discovery Learning model with concrete m</em><em>aterials while q</em><em>uantitative data </em><em>were</em><em> the results of</em><em> </em><em>mathematics </em><em>test</em><em>. Data</em><em> </em><em>collection techniques </em><em>included</em><em> observation, interviews, and tests. The validity of the data use</em><em>d</em><em> triangulation of techniques and triangulation of sources. </em><em>D</em><em>ata analysis include</em><em>d</em><em> data reduction, data presentation and </em><em>drawing </em><em>conclusions.</em></p><p><em>The results showed that: (1) the steps</em><em> to</em><em> </em><em>the application of the Discovery Learning model with concrete </em><em>materials</em><em> to improve mathematics learning about </em><em>plane figures</em><em> w</em><em>ere</em><em>: (a) </em><em>giving </em><em>stimulation </em><em>by</em><em> concrete m</em><em>aterials</em><em>, (b) </em><em>writing </em><em>problem statements, (c) collectin</em><em>g</em><em> </em><em>data, (d) processing data, (e) verif</em><em>ying</em><em>, (f) </em><em>making </em><em>generalization; (2) the application of Discovery Learning model with concrete m</em><em>aterials</em><em> </em><em>improve</em><em>d</em><em> mathematics learning about </em><em>plane figures</em><em> </em><em>to fourth </em><em>grade</em><em> students of</em><em> SDN 2 Tamanwinangun </em><em>in a</em><em>cademic </em><em>y</em><em>ear </em><em>of </em><em>2019/2020</em><em>. It was proven by</em><em> </em><em>the results of teacher observation</em><em>, </em><em>student observation</em><em>, and </em><em>learning outcomes</em><em>. The </em><em>results of </em><em>teacher observation were</em><em> </em><em>85.71%</em><em> </em><em>in the first cycle</em><em>,</em><em> 87.38% </em><em>in the </em><em>second cycle</em><em>,</em><em> and 90.17%</em><em> in the third </em><em>cycle. The results of student observation </em><em>were </em><em>85.57%</em><em> </em><em>in the first cycle, 87.50%</em><em> in the </em><em>second cycle, and 90.17%</em><em> in the</em><em> third cycle</em><em>. S</em><em>tudent learning outcomes </em><em>were </em><em>88%</em><em> </em><em>in the first cycle, 92% </em><em>in the </em><em>second cycle, and 94% </em><em>in the </em><em>third cycle; (3) the </em><em>obstacle</em><em>s </em><em>were</em><em>: (a) the teacher </em><em>faced lack </em><em>of class</em><em> mangement</em><em> when students </em><em>were</em><em> </em><em>not paying attention</em><em>, (b) </em><em>some</em><em> students </em><em>were passive </em><em>in group</em><em> discussion</em><em> </em><em>therefore the discussion took much time</em><em>. The solution</em><em>s</em><em> provided by the researcher </em><em>were</em><em> (a) the teacher </em><em>improved the class management</em><em>,</em><em> </em><em>(b) the teacher </em><em>gave tasks to the students </em><em>equally and </em><em>managed the</em><em> time</em><em> management</em><em>.</em></p><p><em>It </em><em>conclu</em><em>des that</em><em> application of Discovery Learning model with concrete m</em><em>aterials</em><em> </em><em>improve</em><em>s</em><em> </em><em>mathematics</em><em> learning about </em><em>plane figures</em><em> </em><em>t</em><em>o</em><em> </em><em>fourth grade </em><em>students </em><em>of SD Negeri 2 Tamanwinangun in academic year of 2019/2020</em><em>.</em></p><p><strong><em>Keywords</em></strong><em>: Discovery Learning, Concrete Ma</em><em>terials</em><em>, Mathematics</em><em></em></p>