Adding Three Numbers

Wow!! I took a super long break from blogging. I just couldn't get back into it. I think it's the short winter days that make me feel blah. One of the first new concepts that we learned after Christmas break was adding three numbers together.

I almost always present new material in the "Flipped Classroom" format. The students watch a recorded Smartboard lesson at home and then we do a hands on activity in class the next day to reinforce the skill. The kids absolutely LoVE doing lessons this way!!! And, it's super fun for me to teach math this way!

So, I gave each student a bag with three different items in it. They had to count the number of each item and record them. Then, they added the first two numbers, came up with a "sub" sum, and finally added the third number to the "sub" sum. If they couldn't figure it out or didn't understand it, they could of course just count all the items.