One room schoolhouses were common in rural parts of many countries including the Unites States, United Kingdom, Australia, Canada, New Zealand, Ireland and Spain in the late 19th and early 20th centuries. All of the students in a rural town would meet in a single room. In this room, a single teacher would teach academic basics to several grade levels of elementary-age boys and girls. Although one room schoolhouses are no longer used in most places, it's not uncommon for them to remain in developing nations and rural areas.
Most buildings were of simple frame construction, some with the school bell on a cupola. Teachers in one-room schools were often former students themselves. A typical school day would start at 9 a.m. and end at 4 p.m., with morning and afternoon recesses of 15 minutes each and an hour period for lunch.