Little House on the Prairie - Season 1 - Eps 12: The Award
While studying for an optional history exam in the barn, Mary accidentally knocks over a reading lamp and starts a fire. Caroline punishes Mary by telling her she couldn't take the exam. Mary doesn't tell Ms. Beadle this until the day of the exam.
About Little House on the Prairie

Title: Little House on the Prairie
First Air Date: 1974-09-11
Last Air Date: 1983-03-20
Status: Ended
Rating: 7.93/10 (from 903 votes)
Language: EN
Seasons: 10
Total Episodes: 204
Network: NBC
Genres: Western, Drama, Family
Production Companies: Worldvision Enterprises, Ed Friendly Productions, NBC, NBC Studios
Synopsis
Little House on the Prairie is an American Western drama television series, starring Michael Landon, Melissa Gilbert, and Karen Grassle, about a family living on a farm in Walnut Grove, Minnesota, in the 1870s and 1880s.
Cast

Melissa Gilbert
Laura Ingalls

Dean Butler
Almanzo James Wilder

Karen Grassle
Caroline Ingalls

Katherine MacGregor
Harriet Oleson

Melissa Sue Anderson
Mary Ingalls

Richard Bull
Nels Oleson

Victor French
Mr. Edwards

Jonathan Gilbert
Willie Oleson

Allison Balson
Nancy Oleson

Lindsay Kennedy
Jeb Carter