Synthesize insights from the entire unit on Urban Strategy and Cultural Infrastructure. Drawing on case studies from earlier lessons—Pre-Aztec urbanism in Mexico City, the rediscovered Maya city of Valeriana, and broader Latin American ancient urban systems. Analyze how ancient civilizations designed complex urban infrastructures, social systems, and economic networks that supported large populations. Activities include: timeline activities, sequencing activities, business vocabulary, vocabulary, business conversations and conversation practice. Grammar focus: Linking Expressions and Hypothetical Conditionals. Business skills: Strategic Analysis and Cultural Evaluation.