Complete Lesson aligned to Common Core: 4.OA.B.4 or for higher grades to review concepts. Centers around the Sieve of Eratosthenes algorithm with an extra printable to practice. Ready to use! PPT to accompany lesson and worksheets.
-Suggestions for teaching the lesson
-PPT with effects to guide students
-2 printables with answers
-Cover page to make a packet with worksheets
Other Related Lessons:
Factor and Multiples
Task Cards: Divisibility, Factors, Multiples, Prime/Composite Number, Prime Factorization, LCM, GCF