# Properties of exponents

**Lesson Plan:** A concept development lesson about matching expressions and statements involving exponents.

Subject: | Mathematics. |
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Age of students: | 14-15 years. |

Technology: | Small and big cards. |

Functionalities of Technology: | Sending and displaying. |

Time needed: | 60-90 minutes. |

FaSMEd Partner: | The African Institute for Mathematical Sciences Schools Enrichment Centre. |

**Summary**

This lesson is about using and applying the laws of exponents. After a short introduction, during which the teacher leads a discussion about powers of 2, the students work in small groups. They are given two sets of small cards. On one set expressions, such as 6^{8} Ă· 6^{4}, are given. On the other set single values, such as 6^{4}, are given. Students are required to put cards with equivalent value into groups. After the activity the teacher holds a class discussion aiming to draw out something about the studentsâ€™ own learning and to think about the bigger conceptual issues such as why exponential rules work and if students can find different ways to explain why they work.

**Resources**