Your students become emergency transfusion analysts in this interactive blood typing investigation. Students drag Anti-A, Anti-B, and Anti-Rh reagent droppers onto bedside blood typing cards, interpret agglutination reactions, identify patient blood types, test donor compatibility, and defend their final transfusion recommendation using a three-part CER conclusion.This activity is designed to feel like a digital emergency room lab while still reinforcing the science behind antigens, antibodies,