Sieve of Eratosthenes
Learners discover the Sieve of Erathosthenes. They explore a method to find all the prime numbers in a group of numbers. Using models, students practice divisibility rules while examining the difference between prime and composite numbers.
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Eratosthenes: Geographer and Mathematician
Mathematicians can be famous, too! Introduce your class to Eratosthenes with a reading passage. After they complete the passage, learners respond to five questions, some of which require opinions and others reading comprehension skills.
4th - 5th Math CCSS: Designed
Countdown Challenge: Prime & Composite Numbers: Sieve of Eratosthenes
In this prime and composite worksheet, students use the Sieve of Eratosthenes to identify prime numbers. They identify given factors in a list. This one-page worksheet contains a list of 100 numbers. Following a given process, students...
7th - 8th Math