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References & Attributions

This text has original content and adaptations by Dr. Natalie Hobson, Mathematics Professor, Tacoma Community College, and is shared under a Creative Commons Attribution-ShareAlike 4.0 International License, except where otherwise noted.

Majority of content adapted from “MATH 1420: Geometry Concepts for Teachers” by the RSCC Math 1410/1420 OER Team under Creative Commons Attributions 4.0 International License.

Additional content attributed within individual pages.

Cover image photo by Natalie Hobson, All Rights Reserved.

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Mathematics for Elementary Education II Copyright © 2025 by Natalie Hobson is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.

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