for But I Read It on the Internet! by Toni Buzzeo and Sachiko Yoshikawa
From the Publisher
In this fourth Mrs. Skorupski tale, the librarian with the finest accessories in all of Liberty School shows students how to decide when the Internet's reliable. With the help of the Website Evaluation Gizmo, Hunter discovers that the Internet can provide true facts, Carmen learns that not everything there is true, and together they solve the question of George Washington's teeth.
Publisher description retrieved from Google Books.