Arthur's Classroom Fib

Arthur's Classroom Fib is a 2007 step 3 Arthur beginner book written by Marc Brown.

Plot
When Arthur and his classmates head back to school, they're asked to write about their summer vacation. But when Arthur hears the exciting things his friends have done, Arthur feels he must make up a better story of his own. Will Arthur tell the whole class a lie or will he actually tell the truth?