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

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

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

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

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.

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.

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.

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

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

Use a T-chart for students to compile factors.