The concept map on the medieval castle is a useful summary for studying and reviewing the structure and functions of castles between the 9th and 11th centuries. The map presents the main parts of a castle, including walls, towers, wall walkways, moat, drawbridge, keep and tiltyard, explaining their functions. It also introduces the curtis, with areas for the lord’s residence, workers’ houses, lands, shops, the mill and the bakery. A clear and simple summary to understand how a medieval castle was organized and how people lived there.