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.
Hypsodont or high-crowned teeth are continue to erupt throughout life. Examples of this type of teeth include all of the permanent teeth of horses and cheek teeth of ruminants. Hypsodont teeth are usually described as having a body, much of which is below the gum line, and root, which is embedded in the alveolus of the jaw bone. Enamel covers the entire body of the tooth, but not the root.