On his way to lacrosse tryouts, the president of the PTA asks Trip Dinkelman to help her with the book fair, resulting in Trip sustaining a head injury which causes him temporary amnesia and makes for an interesting journey home.
Joe Stoshack, a boy who has the ability to travel through time, learns a lesson about dignified behavior in the face of ethnic and racial strife when he goes back to 1947 to meet African-American baseball legend Jackie Robinson.
Four fifth-grade students--a geek, a class clown, a teacher's pet, and a slacker--as well as their teacher and mothers, each relate events surrounding a computer programmed to complete homework assignments.
Life at Ella Mentry School gets a lot more interesting when the self-proclaimed nerd Mrs. Yonkers takes over the computer lab, and a new rule goes into effect banning all junk food.