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"Let's learn a BORING math lesson!"
―Mr. Jacob

Michael Jacob (known simply as Mr. Jacob) is a supporting character in Sibling Rivalries. He is the 5th/6th Grade math teacher at Wisconsin Elementary School. Mr. Jacob wears a jacket with a J on it, shorts (after "Field Trip Gone Wrong!", he wears pants instead), and sunglasses.

A running gag in the series is that whenever Mr. Jacob and his classroom appears, there is always funny drawings that are written on his whiteboard (such a stickman with the words "Me Dum!", a monster about to eat a person, and even an easter egg Cletus that appears frequently).

He will appear at least once in Sibling Rivalries: The Next Chapter.

TriviaEdit

  • His possible wife may be Mrs. Jacob, but it is uncertain, as Mr. Jacob lives in Wisconsin, and Mrs. Jacob in Canada. The two may have been in Canada during 2012, and in Wisconsin in 2013 on.

AppearancesEdit

Sibling Rivalries Pre-Series

None.

Sibling Rivalries Main Series

NavigationEdit

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