Here's a very cool mini-book on GCF and LCM. Find folding directions at: home.centurytel.n...

Love this anchor chart for prime and composite numbers!

Here's a graphic organizer to help students learn the procedure for prime factorization.

### Prime Factorization Graphic Organizer

Here's a FABULOUS idea for making prime factorization trees.

### pinkmathematics: Important factors

Here's a great idea for creating prime factorization monsters.

### 3 methods to find GCF reference sheet

Here's a foldable for how to find the GCF using T-charts.

Here's a game for kids to gain familiarity with factors and multiples.

### Factor Flip prime & composite game

Here's an activity where students use a 100 board to find multiples and factors of numbers.

Here's a great graphic organizer to help students factor numbers 1 - 100. These can be used to teach prime/composite, odd/even, divisibility rules, skip counting, compatible numbers, factors, multiplies, GCF, simplifying fractions, and more. Link to free download included.

### If My Calculations Are Correct...

### Interactive Bulletin Boards

Young Teacher Love: Alternative assessment for a quick check: Factors and Multiples

### Young Teacher Love: Factors and Multiples

Math Manipulatives - Find the prime factorization of numbers by completing factor trees. Then use a venn diagram to sort the prime factors. Multiply numbers in the intersection to find the greatest common factor. Multiply all of the numbers in the venn diagram to find the least common multiple.

### Factor Trees and Prime Factorization

Blog post about making factors understandable AND fun with a cool game.

Factors and multiples quick check idea! Great for formative assessments!

### Young Teacher Love: Factors and Multiples

Use a T-chart for students to compile factors.

### T-Chart Factors

Slice composite numbers into prime numbers.