The Five Largest Deserts of the World
By Virginia Kirsch
In this learning activity you'll explore the five largest deserts of the world.
Central America
In this learning activity you'll locate the countries of Central America on a map.
Greenland
In this learning activity you'll quiz yourself about Greenland by answering questions about the people, the land, and the economy.
The United States Congress
By Therese Nemec, Nancy McFadden, Deb DeRosso, Mike English
In this learning activity you'll test your knowledge of the roles and differences between the two Houses of Congress - the Senate and the House of Representatives.
Perception- Believing Is Seeing
By Carol May
In this learning activity you'll view a library of figures demonstrating various concepts in visual perception.
Six-Pointed Figure
In this learning activity you'll discover how the concept of unstable figures influences your perception of an image.
Circles in Circles
In this learning activity you'll discover how perception of size is influenced by what's surrounding an image.
Squares In and Out
In this learning activity you'll discover how visual perception of size is influenced by what's surrounding an image.
Similar Squares
Angles Within Angles
Outward/Inward
In this learning activity you'll discover how visual perception is influenced by what's surrounding an image.
Surrounded Circles
In this learning activity you'll discover how visual perception is influenced by what's surrounding the image.
International Exchange Rates
By Steve Anderson
In this learning activity you'll calculate exchange rates to determine the impact of prices of exports and imports.
Overlapping Circles: An Unstable Figure
In this learning activity you'll discover how the visual perception concept influences your understanding of unstable figures.
Linking Boxes: An Unstable Figure
Cubes or Bricks: An Unstable Figure
Folded Paper: An Unstable Figure
A Goose or a Hawk: An Ambiguous Figure
In this learning activity you'll discover how the visual perception concept influences your understanding of ambiguous figures.
Four Arrows: An Unstable Figure
In this learning activity you'll explore how visual perception influences your understanding of unstable figures.
All Is Vanity: An Ambiguous Figure
In this learning activity you'll discover how your visual perception influences your understanding of ambiguous figures.
Stacked Cubes: An Unstable Figure
In this learning activity you'll discover how visual perception influences your understanding of unstable figures.
A Rabbit or a Duck: An Ambiguous Figure
In this learning activity you'll discover how perception influences understanding.
Interpreting Line Graphs
By Barbara Laedtke
In this learning activity you'll analyze line graphs and answer questions about the information shown.
Religions of the World - Christianity
By Therese Nemec
In this learning activity you'll identify the counties with the largest Christian populations.
Religions of the World - Hinduism
In this learning activity you'll identify the 10 countries with the largest Hindu populations.