Model the relationship between Earth and the Moon, and scale distances within and beyond our solar system. Details »
Classroom Resources
Review what prime numbers are and learn about the 2,300-year-old mystery surrounding prime numbers. Discover what the twin prime conjecture is. Details »
Explore what prime numbers are, and consider how they are useful in everyday life. Learn about the twin prime conjecture, and discover why mathematicians have had a difficult time proving that there are infinitely many pairs of twin primes. Details »
Create a multidimensional mathematical world. Consider the possibility of a universe with 11 spacetime dimensions. Details »
Duplicate Archimedes' geometrical approach to estimating pi by determining the difference in perimeters of polygons inscribed within and circumscribed outside a circle. Add sides to the polygons to decrease the difference and approximate pi. Details »
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Everyone's Business
Explore entrepreneurship, competition in the market economy and additional topics including mergers, acquisitions, consolidation, joint ventures and hostile takeovers.
Global Population
Research population trends in developed and less developed countries and consider the political, social and environmental repercussions of discrepancies.
