# Factors and Multiples Activities Bundle 4.OA.B.4

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Common Core Standards
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1. Arrays help kids conceptualize multiples and factors. Three simple but powerful activities build understanding of arrays, factors, multiples, and common multiples. They can be used at the beginning of a unit on factors or as remediation. These activities are especially good for students who are havi
2. Helping kids name factors of numbers from one through one hundred is hard work. Grab these handy cards, sheets, and Venn diagram to give your students the conceptual practice they need. These worked in my classroom, and they’ll work in yours too! What’s Included: • Factor Cards (numbers two through
3. Prime factorization is the key to finding factors. You can teach prime factorization through factor trees or the ladder method - - - or both! What’s Included: • two-page factor tree worksheet • two-page ladder method worksheet To launch your unit on factors, try Teaching Factors with Arrays. Once
4. Kids learn to think more deeply about factors and multiples with these number of the day sheets. Twenty different cards ask them to decompose a number into its prime factors; list all factors; determine if the number is even, odd, prime, composite, and/or square; and list some multiples of the numbe
Bonus
1 file
Factors Assessment
Bundle Description
In fourth grade, kids need to gain familiarity with factors and multiples (4.OA.B.4). This set of four activities will help your students conceptualize factors and multiples, find all factor pairs for the numbers 1-100, and determine whether a number is prime or composite.

Activities:
• Teaching Factors with Arrays – Kids conceptualize factors and multiples with three simple (but powerful) array activities.
• Factors of Numbers from 1-100 Cards, Sheets, and Venn Diagram – Kids complete cards showing the factors of each number. On factor sheets, they list factors and tell whether each number is prime or composite. Finally, they sort numbers as prime, composite, and/or square on a Venn diagram.
• Prime Factorization – Four sheets allow you to teach prime factorization with factor trees or the ladder method.
• Number of the Day – Keep kids thinking about factors and multiples with 20 numbers of the day. They decompose the number into its prime factors; determine if the number is even, odd, prime, composite, and/or square; and list some multiples.
• Bonus – A two-page assessment checks students’ basic understanding of arrays and factors.

What’s Included:
• Multiples and Factors 1 – graph paper with directions at top asks students to draw arrays for multiples (to x 9) for two, three, four, or five
• Multiples and Factors 2 – graph paper with directions at the top asks students to draw additional arrays for specific multiples of the number they were working on
• Exploring Related Numbers – teacher page with pairs of numbers to assign and graph paper to draw arrays for posters
• Prime, Composite, Square – student page asks students to find three prime, three composite, and three square numbers as they look at the posters
• Factor Cards (numbers two through one hundred) – Students list all factor pairs for each number.
• Factor Sheets – Students list factors for each number and tell whether it’s prime or composite.
• Venn Diagram – Students sort numbers into prime, composite, and/or square then analyze the patterns.
• two-page factor tree worksheet
• rules of divisibility reference sheet
• definition sheet
• guide to using factor trees
• 20 number of the day sheets
• Bonus – brief assessment

This resource helps kids develop fluency and understanding of numbers and their patterns. Deep thinking about factors and multiples builds skills necessary for working with fractions.

Enjoy!
Brenda Kovich
Total Pages
86 pages
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Teaching Duration
1 month
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