Create a class friendship tree to celebrate the friendships your students share. Draw or cut out a large tree from poster board to hang up in your classroom. Take a picture of each one of your students, label them, and hang them on the tree like fruit. Explain to the class that each student represented in the tree is a friend, whether his picture is on the trunk or in the branches.
During circle time, begin a discussion about the qualities of a good friend. Examples might include kindness or sharing. Bring along a bean bag or small ball, and have students to toss the ball to one another. Encouraging them to say why the student they threw the ball to is a good friend. Make certain that each student is chosen at least once.
Help students make new friends while learning about new places. Create a relationship between your class and a class in a different school. The school might be in your town, in a different state, or even in a different country. Encourage students to draw pictures to send to the other students, or help them write short letters by writing what they dictate. Take time to learn about where the pen pals live, and help students find their location on a map.
Preschool children love showing friends their special toys, but don't often like to share them. Help your preschool students understand the importance of sharing in a friendship with a show and share. Before the lesson, send home a letter to parents letting them know that their child will be asked to bring in a toy to share with other students. During circle time, give each student a few moments to present their toy to the class. After all students have presented, encourage students to kindly ask friends if they can play with their toy. Recognize students who use "please" and "thank you." When playtime is over, make certain that each toy is returned to its owner.