This study determined the effectiveness of Mathematical Modelling integrated with Dynamic GeoGebra Application on students' performance in mathematics. The participants of this study were the two (2) intact grade 8 class of Casisang National High School during the school year 2019-2020. Results of the analysis revealed the level of students' performance in mathematics improved and increased when taught using Mathematical Modelling integrated with Dynamic GeoGebra application. Since it was found out that there was a significant difference in the performance between the experimental and the control group, then mathematical modelling integrated with dynamic GeoGebra software could be used to enhanced student's capabilities and interest in understanding mathematics. It was recommended that mathematics teachers are encouraged to use mathematical modelling integrated with dynamic GeoGebra software in the teaching and learning process to enhance student's performance in mathematics and become more effective in their lesson presentation. Furthermore, institutional training on the use of mathematical modelling integrated with dynamic GeoGebra software could be provided to all mathematics teachers in the school so they could incorporate it in their lessons and increase the interest of students in learning mathematics.