## Lesson: Addition and Subtraction of Fractions

Introducing the Concept

Introduce this concept by using concrete examples. Begin addition and subtraction of fractions by using a manipulative such as paper fraction kits. Concrete examples allow students to comprehend the concepts.

**Materials:** paper fraction kits made from colored construction paper

**Preparation:** Allow each student or pair of students to have a fraction kit consisting of the following:

whole | white paper |

halves | red paper |

fourths | blue paper |

eighths | yellow paper |

sixteenths | green paper |

It is important that each student have the same color pieces. This will result in less confusion when you give instructions to the class. If you like, have students make their own kits.

**Prerequisite Skills and Concepts:** Students should have a basic knowledge of equivalent factions as well as comparing and ordering fractions.