Turn to your neighbor and describe what a factor is.

After completing the Check-your-understanding Questions, which were important for everyone to do?

What would you do if you were asked to find the GCF of 3 (or more numbers)?

Can we find the greatest common factor of 60, 24, and 48

On the blank side, write your first and last name and U5T1. Then, find the GCF of:

A. 24 and 30

B. 60 and 80

Lists will always work, but can be time-consuming.

The Ladder Method can be used to find the LCM too. Multiply ALL the numbers on the outside: (the numbers on the left and the numbers on the bottom.

What is the difference between the GCF and the LCM (compare and contrast)?

1. CYUqs (do some with lists and some with the ladder method):

You are all going to do some of these. But, there are three things for you to keep in mind. First, do your own. Second, you choose where to start. Third, check your work with the students around you, and if you need help, get help. And if someone needs help, give help.

Check answers to make sure you are understanding

2. Be sure that your notes are your notes are up to date:

3. Stuck? Choose to persevere: review your thinking, try different approaches, ask for help, search