Unit Plan
Interactive Mathematics

Interactive Mathematics: Simplifying Expressions With Integral Exponents

For Students 9th - 10th Standards
The laws of exponents are presented using expressions containing both positive and negative exponents. Several examples and exercises are given to help practice the concept.
Handout
CK-12 Foundation

Ck 12: Algebra: Properties of Exponents Study Guide

For Students 9th - 10th Standards
This comprehensive study guide highlights the main terms and formulas needed to understand properties of exponents. Examples are included.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 8.ee Extending Definitions of Exponents, Variation 1

For Teachers 8th Standards
In this task, 8th graders examine the changes in the size of a population of bacteria during an experiment studying its growth. They learn how to talk about negative integer exponents and negative time. Aligns with 8.EE.A.1.
Handout
University of St. Andrews (UK)

University of St. Andrews: Nicholas Chuquet

For Students 9th - 10th
This site from the University of St. Andrews provides a biography of mathematician Nicholas Chuquet, who was the first to use negative numbers as exponents and coefficients.

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