<![CDATA[This research originated from observations made by researchers on Mathematics learning at SD Negeri 1 Balonggebang Nganjuk. In the learning process, the teacher has not utilized learning media as a learning resource. In addition, students were confused in solving the problem of presenting data with the type of story questions. So that student learning outcomes are still lacking. In connection with these problems, researchers conducted research using lego bar chart media to improve learning outcomes in data presentation material. The purpose of this study was to improve mathematics learning achievement in the material for presenting data through the media of lego stem diagrams in class IV SD Negeri 1 Balonggebang. This study used a Classroom Action Research (PTK) design which was carried out in two cycles, and each cycle consisted of four stages, namely the planning stage, the implementation stage, the observation stage, and the reflection stage. Data collection techniques used are observation and tests. The collected data were analyzed using quantitative descriptive analysis techniques. The results showed that using lego color media can improve student learning outcomes with classical mastery obtained in cycle I by 50% and cycle II by 100%. In addition, the results of the study also showed an increase in student activity in cycle I of 64.2% and cycle II of 100%. Thus it can be concluded that data presentation material can be taught using the media of lego bar diagrams (DiBaLe).]]>
Copyrights © 2023
