Handout
Purple Math

Purplemath: Number Bases: Introduction & Binary Numbers

For Students 9th - 10th
The process of converting between different number bases is actually fairly simple, but the thinking behind it can seem a bit confusing at first. And while the topic of different bases may seem somewhat pointless to you, the rise of...
Graphic
Other

Who's Who in Shakespeare's History Plays

For Students 9th - 10th
Here is a color-coded family tree to help you understand how the historical characters in Shakespeare's series of history plays are connected. As a bonus, you also get a brief synopsis of each of the plays.
Graphic
US Environmental Protection Agency

Epa: Ecological Regions of North America

For Students 9th - 10th
A helpful map of North America which color codes its 15 ecological regions. Click on the different regions for a brief description of the area.
Handout
Science Struck

Science Struck: Metalloids in the Periodic Table

For Students 9th - 10th
Discusses the history and organization of the periodic table, where the metalloids fit in, and their properties. Includes color-coded periodic table of elements.
Article
University of Washington

University of Washington: Knights of Labor History and Geography 1869 1899

For Students 9th - 10th
Overview of the Knights of Labor with maps showing the expansion of the Knights by color-coded time period, the number of local assemblies in each LA county, and more.
Website
Other

Thurston High School: The Tundra Climate

For Students 9th - 10th
Site discusses and analyzes the daily weather in the tundra. Provides a map of the world that is color-coded to show the different biomes and systems of the world.

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