Loyola University Chicago
Math Flix: Prime Numbers: Sieve of Eratosthenes Part 1
This QuickTime movie uses a hundreds chart to record all the prime numbers between 1 and 100 by eliminating all the composite numbers. A pdf worksheet is available by clicking on the hyperlink at the bottom of the page. As you watch and...
Loyola University Chicago
Math Flix: Prime Numbers: Seen in Graphics
This QuickTime movie provides an explanation of just what prime numbers are using graphics. As you watch and listen to the teacher and students interact it helps clarify the thinking behind applying this concept.