The name Roscommon is derived from Coman mac Faelchon who built a monastery there in the 5th century. The woods near the monastery became known as Ros Comain (ComÃ¡in. St'coman S). woodhe name Roscommon is derived from Coman mac Faelchon who built a monastery there in the 5th century. The woods near the monastery became known as Ros Comain (ComÃ¡in. St'coman S). Wood this was later anglicised To. roscommon
Brief Description: This is a hands-on lesson studying the four types of teeth and the job of each type. Several small groups will work together to act out the role of each type of tooth. Grade Level: 1st. Background Information: The four types of teeth are the incisors, cuspids, bicuspids, and molars. Each type of tooth has its own job. The incisors, located in the center and front of the mouth, are used to cut (incise) food. There are eight incisors, four in the upper jaw and four in the lower jaw.
Each type of tooth has a slightly different shape and performs a different job. Types of teeth include: 1  Incisors. 2  Incisors are the eight teeth in the front and center of your mouth (four on top and four on bottom). Your four canines are the next type of teeth to develop. 2  These are your sharpest teeth and are used for ripping and tearing food apart. 3  Primary canines generally appear between 16 and 20 months of age with the upper canines coming in just ahead of the lower canines.