# 4th Grade Common Core Math Unit/Center - Factors, Multiples, Prime and Composite

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Directions:
• Print the factor quacker cards and the multiplication “Cheat Sheet” on cardstock and laminate. For the included worksheet you can either print several and put in a folder with a center or laminate a couple of copies and let the kids use those with dry erase markers.
• For this center I use two large foam dice I got at the dollar tree, however any dice will work.
• Give each student a multiplication “Cheat Sheet” (Optional, I use this for differentiation)
• The students work in groups of two or three and roll the dice to get their product. You use both dice for the product, you don’t multiply the two numbers together. For example, if they roll a 6 and a 1 the product is 61, not 6.
• Once they get their product they write it on the sheet and then they work together to get all of the factor pairs lined up in order from least to greatest underneath the dice set.
• Once they have all of the factor cards lined up they write them on the sheet.
• Repeat until the answer sheet if filled.

I have also included information on factors, multiples, prime numbers and composite numbers in a printable version for Interactive Math Journals.

I hope you enjoy this product. If you have any questions or comments please email me at maryginacarr@gmail.com
Please check out my tpt store at http://www.teacherspayteachers.com/Store/Mary-Gina-Carr
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11 pages
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