Abstract
Graphical representations of mathematical equations, particularly circle equations, play a crucial role in conceptual learning. This study investigated the effect of the Desmos Graphing Calculator (DGC) application on students’ test scores in circle equations, assessed the significance of the differences in scores before and after using the application, and explored students’ experiences with the tool. Utilizing a one-group pretest-posttest design, the research employed both quantitative and qualitative methods. The test instrument demonstrated a reliability value of 0.85, involving 50 student participants from the Integrated Laboratory Science High School at Mindanao State UniversityMaguindanao. Data analysis was performed using the Wilcoxon Signed Ranks Test. The results revealed 0 Negative Ranks, 50 Positive Ranks, and 0 Ties, indicating that no students scored higher before the intervention, while all students achieved higher scores afterward, with no ties in scores. The pretest mean score was 8.18, which increased to a posttest mean score of 28.52, yielding a Z value of -6.157 and a p-value of .000. This indicates a significant improvement in students’ test scores following the use of the application. Additionally, qualitative feedback from students highlighted the effectiveness of the DGC in enhancing their understanding of circle equations. Overall, the findings suggest that the DGC is an effective tool for enhancing student performance in understanding circle equations.
Keywords: Circle Equations, Desmos Graphing Calculator, Graphical Representation, Innovative Graphing Tool, Learning Outcomes.