It's not easy being a sixth grader, particularly one with an ingenious knack for getting into trouble with his parents, teachers, and a line of picketing sixth-grade girls Anyone who's ever spent time in ?time-out? will appreciate the hilarious antics of this misunderstood pre-teen with a cause. Also in a fun, updated format sure to grab kids? attention Matthew Martin hates being the youngest kid in sixth grade, but he's convinced things will get...