Second graders read Curious George and the Boat Show. Students and dads were challenged to build boats from materials given to them that could hold up to 20 items without sinking. After reading Three Billy Goats Gruff, third grade dads and students were challenged to create a bridge to withstand 15 pounds. Fourth and Fifth graders read Three LIttle Pigs. Dads and students built houses from various materials that could not be blown down with tornado strength winds.