I know there is a lot of controversy about the Common Core, and that is not what I’m here to discuss. If you are a teacher, whether you are for or against CCSS, you have to teach the standards! So I am here to (hopefully) make your life a little easier. 🙂
The division area model can seem difficult to teach because it’s NEW to so many, but actually, I found my students to be MUCH more successful with it than the traditional long division algorithm.
That means we need to slide the “remainders” over to the tens place, but we also need to trade those two hundreds for twenty tens to be able to make groups.
Now, we can put seven tens into three groups to divide evenly.
So again, we slide those remainders over, this time to the ones… so those two extra tens should now be traded for twenty ones.
And of course, we can divide 24 into three equal groups by putting eight in each group!
The same could go if they said 300 could be in each group… when they go to subtract 900, they are going to see that 300 can’t be correct! But luckily, this student figured out it was 200. 🙂
Moving to the tens, same idea- I like to have the students “box” what they are going to be dividing. This way, they remember it is 23 tens, not just 3 tens.
Finally, just like before, add up all those numbers across the top of the model to get your quotient!
I like to give students this larger workmat (laminated) with a dry erase marker to help them do their work. Not only is it more fun, but of course, it is also easier to erase, and erase, and erase… 🙂
You can find this activity (and many other division stations) in my Differentiated Division Stations for Math Workshop pack! I also have other math station sets in my store.