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PRACTICE MISSIONReason about scarcity
Trade, specialization, scarcity, goods, and services
GUIDED MISSION - Trade and Exchange Port: Limited timber used for a bridge means what? Identify the event, institution, or viewpoint, then test each choice against the historical or civic evidence given.
MODELExchange Scale
HIS
PROVEChoose with evidence
CLUE
Pause. Find what matters. Then make your move.