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According to the FANDOM Wiki for the series:

"Azumanga Daioh: The Animation is the anime adaptation of Azumanga Daioh. Produced by J.C.Staff, it aired from April 8, 2002 until September 30, 2002 on TV Tokyo in five-minute segments every weekday. It was later repeated as a 25-minute compilation collected in 26 episodes. Every episode ends with a preview of the next one, and the characters commenting on it, thus breaking the fourth wall. The compilation episodes included the opening and closing themes – "Soramimi Cake" (空耳ケーキ Cake of Mishearing) being the opening and "Raspberry Heaven" being the closing song, both performed by Oranges & Lemons. The compilation episodes were released on 6 DVDs in 2003 and 9 Universal Media Discs between 2005 and 2006 by Starchild Records, and a DVD box set of all episodes was released on June 24, 2009; the five-minute segments can be distinguished by their individual titles."

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