Sensei no Ojikan: Dokidoki School Hours OVA
Japanese title: せんせいのお時間: Doki Doki School Hours
Alternative titles: Sensei no Ojikan: Dokidoki School Hours Episodes 14-20
Type: OVA
Source: 4-koma manga
Episodes: 7
Status: Finished Airing
Aired: Aug 4, 2004 to Feb 2, 2005
Duration: 23 min per ep
Rating: PG-13 - Teens 13 or older
Studios: J.C.Staff
Producers: Genco, King Records
Licensors: Geneon Entertainment USA
Genres: Comedy
Themes: School

The series is centered on 27-year-old homeroom teacher Mika Suzuki (who only looks about half her age) and the eccentric and colorful students of her class. 

(Source: Wikipedia)