The purpose of this research is to investigate the effectiveness of interactive classroom applications (Quizlet and Kahoot!) on Thai and International high school students’ engagement levels in (IGCSE) Business Studies class. The aim is to test students’ performance and build a collaborative classroom environment that enhance active learning. This is a mixed method research, collecting and analyzing both quantitative and qualitative data to measure students’ cognitive, behavioral and affective engagement levels when using the interactive classroom applications. The study targeted 25 high school students, aged between 15 and 18. The quantitative data was collected using 13 closed-ended questions which was tested for reliability. The qualitative data was obtained from 3 interview questions to gain insights on participants’ perceptions. The data was statistically and descriptively analyzed. The results of this study show that there is an increase in students’ cognitive, behavioral and affective engagement levels in Business Studies class when using interactive classroom applications. Students also perceive the use of these applications positively and have better learning outcomes. The findings are consistent with previous studies which concludes that students in the digital age are motivated and engaged when using digital devices that they are familiar with in the modern education classroom.

Keywords: IGCSE, Cognitive Engagement, Handheld Devices, Quizlet, Kahoot!, Technology Integration.