Assess learners' ability to apply life cycle assessment (LCA) to compare environmental impacts of conventional concrete versus engineered timber in low-rise building construction, including selecting a functional unit and system boundaries; modeling material production (cement/clinker, aggregate, timber harvesting and processing), carbon storage/biogenic carbon accounting, operational energy and durability effects, end-of-life scenarios and allocation methods; performing sensitivity and uncertainty analyses; interpreting key impact indicators (GWP, embodied energy, other relevant categories); and making evidence-based design or material-specification recommendations for low-rise projects.