How To Use A Bar Model To Solve Multiple Part Addition

Hi, my name's Ben, and in this video I'm going to be showing you how to use the bar model to solve multiple part addition. It's worth mentioning here that this will be a really good introduction to bar models for year two, possibly year three. Here's our question. Oranges cost 85 pence each. Bananas cost 29 pence each. What is the cost of three oranges and two bananas? Now, when we're mapping out the bar model, it's really important that we keep the boxes approximately the size of the number. So the larger the number, the larger the box. Okay, so first let's look at our oranges. So there's one box for one orange, 85 pence. And here we have two more. So there are three oranges at 85 pence each. Then we need to do the same for our two bananas. And those are the parts that make up the whole. So we've got the 1, 2, 3 oranges and the 1, 2 bananas. That's all the parts. Now we need to see what that's like as a whole. So there's the whole. And the children would add those together using whatever method they would decide upon. It may be column addition, it may be a number line, and they would get their total of 3 pound 13. And that's how you can use the bar model to solve multiple part addition.