Abstract
<p>The present study investigates the effectiveness of implementing an educational constraint centered on sustainable development on the quality of pre-service teachers' instructional design within the framework of the Integrated AI Triad (IAT) model. A quasi-experimental approach was adopted, comparing the lesson plans of 28 pre-service teacher teams across a Baseline phase and a Sustainable Development Pedagogy (SDP) phase. The results of a paired $t$-test revealed a statistically significant improvement in the overall design quality after the intervention (t(27) = 13.78, p &lt; 0.001), accompanied by an exceptionally large effect size (Cohen's d = 2.80). The highest surge was observed in the SDP workflow compliance index, which exhibited an increase of 1.83 units. These findings demonstrate that enforcing a rigorous, AI-assisted zero-paper resource management constraint serves as a strategic catalyst, transforming the teacher's role from a conventional pedagogical designer into an efficient, highly reflective, and strategic educational manager.</p>