This presentation covers: prime factorization, divisibility rules, determining GCF between two or more numbers and applying GCF to real world problems.
For the word problems, I pass out colored tiles to represent the items being regrouped. Students sort the tiles into equal corresponding groups. Its a hands-on way of visualizing the GCF concept. You can also use the word problems as task cards by printing the individual slides with the word problems, which is a great way to Jigsaw GCF. This covers CCSS 6.NS.2, 6.NS.3, and 6.NS.4