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As recommended by the Education Blueprint 2014-2020, education system in Bhutan transformed from traditional instructions to technology-enriched and enabled teaching and learning environment with adoption of emerging and relevant technology to produce the globally competent learners. The integration of educational technology in the teaching and learning of definite integral creates a conceptually rich learning environment. From this perspective, this study aims to ascertain the effectiveness of a computer-assisted instruction method using GeoGebra in developing the conceptual understanding of definite integral for grade 12 students. This study employed a quasi-experiment static-group comparison design with 60 students from Gongzim Ugyen Dorji Central School in Haa. The students were divided into two equal groups. Group ‘A’ used the GeoGebra software, while group ‘B’ used the conventional method to learn definite integral. The data were collected through Definite Integral Knowledge Test. An Independent sample t-test was employed using the Statistical Package for the Social Sciences (SPSS 22.0). Findings of the study showed that students who were taught using GeoGebra outperformed those who learned through conventional methods. The results confirmed that GeoGebra software is capable of enhancing and significantly improving students’ conceptual understanding of definite integral.
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