From experts to app: Crafting an Engaging Mobile Learning App for form four Additional Mathematics using Nominal Group Technique

This study outlines the design phase of the Interactive Surd, Indices & Logarithm Mobile App (INSUMA), a mobile learning (m-learning) application developed for Form Four Additional Mathematics students using the Design and Development Research (DDR) model by Richey and Klein. The design was guided by insights from the Nominal Group Technique (NGT), involving nine subject matter experts in a face-to-face session. Through structured consensus, seven key constructs were identified to inform both instructional and interface design. Construct 1 had four elements (one selected), Construct 2 had ten (eight selected), Construct 3 had four (two selected), while Constructs 4 to 7 had a total of 23 elements, all selected. These validated constructs shaped the app’s pedagogical and functional components, ensuring content relevance, usability, and alignment with learners’ needs. Overall, this design phase establishes a strong foundation for the subsequent development and implementation of INSUMA, which aims to enhance students’ understanding of challenging mathematical topics through a mobile-based, game-enhanced learning experience tailored to the Malaysian curriculum.