Sophie Simon solves them all /
Lisa Graff ; pictures by Jason Beene.
- 1st
- New York : Farrar Straus Giroux, c2010.
- 103 p.: ill. 19 cm.
Lex: 680
Sophie Simon, a third-grade genius, wants a graphing calculator so she can continue to study calculus while she rides the bus to school, but her parents are more concerned that she does not have any friends.