Zookeeper, horse stable owner, archaeologist, lawyer, pilot, fireman, newspaper editor, dairy farmer, arson detective . . . these are just a few of the real people who, in their own words, share their own daily encounters with mathematics. How much lettuce does the Pizza Hut manager need to order for next week? How many rose bushes can a gardener fit around a wading pool? How many fire hoses will be needed to extinguish the fire? Your students...