Denver's large blue bear, which resides outside the Colorado Convention Center, provides the real-life tie-in to this estimation activity.

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Contributor Notes

Edward C. Nolan, Edward_C_Nolan@mcpsmd.org, is supervisor of mathematics in Montgomery County Public Schools, Maryland. He taught mathematics at the middle school and high school levels for nineteen years. His current interests include algebra readiness, multiple representations, and student understanding of patterns.

(Corresponding author is Nolan Edward_C_Nolan@mcpsmd.org)
Mathematics Teaching in the Middle School

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