The standard Global Classroom 2025, held from March 18 to 20, brought together students, educators, and experts from around the world for a dynamic exchange of ideas on global issues. The event featured an online interactive classes session on topics Atomic and Molecular Spectroscopy focusing on UV-Visible Spectrophotometry and Atomic Absorption Spectrometry. These topics are partially from the Instrumentation Method (BSK2143) course, one from the Bachelor of Applied Science in Industrial Chemistry with Honours programme (BSK). Notably, it included contributions from collaborators at Universitat Autònoma de Barcelona, Spain namely Prof. Montserrat López Mesas and Dr. Iris Henríquez Valido, who shared their expertise on innovative educational strategies and chemical instrumentation method approach. Participants engaged in thought-provoking debates and assessments aimed at addressing real-scenario challenges especially in chemical instrumentation method field. With a strong emphasis on inclusivity and global cooperation, the three-day event fostered meaningful connections and inspired the next generation of global leaders.