Eratosthenes' sieve

Description

Students can use this interactive JavaScript applet to arrive at a list of the prime numbers up to 400. Clicking on any number removes all its proper multiples from the grid.

12 Tags

1 Learning Standards

Teaches CCSS.Math.Content.4.OA.B.4
4. Find all factor pairs for a whole number in the range 1—100. Recognize that a whole number is a multiple of each of its factors. Determine whether a given whole number in the range 1—100 is a multiple of a given one-digit number. Determine whether a given whole number in the range 1—100 is prime or composite.

Alignment of the Resource to this Standard

IOER Community Rating: Not Rated

18 Keywords

Mathematics Factors Elementary School Prime numbers Connections Multiplication Representation Upper Elementary Visual representation NSDL Arithmetic Number concepts Education Number and operations Operations Whole numbers Concept formation Process skills
#Mathematics #Factors #ElementarySchool #Primenumbers #Connections #Multiplication #Representation #UpperElementary #Visualrepresentation #NSDL #Arithmetic #Numberconcepts #Education #Numberandoperations #Operations #Wholenumbers #Conceptformation #Processskills

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