Sieve of Eratosthenes
This virtual manipulative displays a grid containing numbers from 2 to 200. It can be used to explore prime numbers, patterns, and relationships involving multiples. Using this virtual manipulative you may: • Remove multiples of a number • Show multiples of numbers • Reset the workspace • Choose how many rows to display
This interactive hundreds chart can help students located the prime numbers between 1-100 by eliminating the multiples of 2, 3, 5, 6, 7, and 10. The process of elimination can be useful in the teaching and application of the divisibility rules. This chart provides an excellent visual with engaging colors.
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eduToolbox® is a resource-sharing portal developed by the Ayers Institute for Learning & Innovation with collaborative support and funding from the Tennessee Department of Education and the U.S. Department of Education's Math & Science Partnership program.
