This document contains homework instructions asking the reader to calculate the length of a 1.70m tall man's shadow at 2pm on April 14th and November 19th in 7 different cities: Guayaquil, Panama City, Paris, London, Beijing, Canberra, and Nairobi. The reader is instructed to show all calculations and procedures for determining the shadow lengths in each city on the provided dates. Pages 1 through 12 are left blank for the reader to show their work.