Elementary school teachers face intensive administrative bottlenecks when aligning learning components under new national curriculum standards, which severely drains their cognitive capacities away from classroom instructional execution. To address this systemic issue, this research designed, developed, and evaluated the validity, practicality, and empirical effectiveness of the BATIK web-based platform as an automated framework for drafting curriculum-compliant teaching materials. Following the iterative Holistic 4D developmental model that encompasses the define, design, develop, and deploy phases, this Research and Development study engaged 100 elementary school teachers distributed equally across five districts in Banjarmasin through a multistage sampling approach. The evaluation process by content and media experts verified high product legitimacy, yielding exceptional validity indices of 90% and 91% respectively. Furthermore, wide-scale field implementation proved remarkably successful by demonstrating a statistically significant surge in teachers’ capabilities from a manual baseline score of 0.35 to an automated post-test score of 0.64. The platform increased teachers' instructional planning performance scores from 0.35 to 0.64 while reducing the average instructional planning time by 83%, calculated using the instructional planning time-saving index based on the difference between mean manual and BATIK-assisted planning durations. This technological intervention effectively minimizes structural administrative constraints, functioning as an accessible digital ecosystem that operationalizes cognitive load reduction and significantly optimizes daily teaching preparation tasks.