Students explore invention and unveiling of world's first Ferris wheel, analyze photographs and poster of first Ferris wheel, and discuss engineering achievements of Ferris wheel, including how it worked, how it was built, and its immense size. Students then compare and contrast first Ferris wheel with Ferris wheels of today, apply practical math conversion, analyze advertising power of Ferris wheel poster, invent their own fair rides, and create posters for those rides.