(Strip Number 451, Original Publication Date, 18 August 1983)
Panel 1: We start things off with Mike yelling "MAAAAAAAAAAAAAHHHHHHHH!!!!!!!!! I got a new eraser an'Lizzie bit it right in half!!"
Panel 2: Since no one seems to have seen fit to watch what Lizzie is doing, Mike is forced to point out to the inattentive dolt he calls a mother that the three-year old little stranger who, for reasons that escape her and John, insists on hanging around has scribbled in some of his notebooks out of a lack of things to do.
Panel 3: He then bellows that he can't go to class with a bunch of junked-up and busted stuff.
Panel 4: He then thought-bubbles that his classmates would think that he couldn't wait for school to get started.
Summary: The notes are all about how Lynn loves to chew on pencils and erasers and not about how Elly's poor parenting sets up things like this. They also won't be about Mike's stupid, self-serving but age-appropriate inability to see that since Lizzie is THREE YEARS OLD, she didn't do this on purpose.