**Fun Expanded Form Activity**

**Fun Expanded Form Activity**

**Expanded form**, also known as expanded notation, is one way students need to be able understand and write numbers. The other forms being standard form and word form. When teaching place value, students must be able to see and understand the value of each individual digit in a number, which of course would be

**expanded form**. For some kids, this concept can be a bit difficult to fully understand.

*tool*for helping kids understand. Trust me, I have seen many dusty calculators :-) I think mine is designed for the 3-5 classroom. It looks like this:

**expanded form**. At the time, I actually had a small group struggling with expanded form, so I tried it out with that group the next day.

**expanded form**problem), such as 5,000+600+50+9, but I didn't tell them what it equaled. I had them write the problem out horizontally and vertically, so they could see that it was basically just an addition problem like they were accustomed to adding. I then had them key the addition problem into the calculator, and they could see their problem across the top of the screen as they entered each number, which was pretty much seeing the

**expanded form**or values of the digits in the numbers. I then had them hit the equal button to get the standard form of the number. Once they had the answer, or standard form, of the number, we looked at the number on their calculator screen, which of course was 5,659. We compared it to the addition problem on their paper and discussed that what they had done was given each digit in the number a value and that is what they added up to find the total value of the number. We continued this process several times to gain understanding.

**values**would you give each number (starting with the 9) that you could then key into the calculator as an addition problem that would get you an answer of 9,876?" They would then start by saying, "Well, I think we would enter 9,000 for the 9." So, I would tell them to hit a 9,000 and then the plus sign. Then they would say, "Next I think we would add 800 for the value of the 8." They would key that in. Remember, all along the addition problem they are typing will be popping up at the top of their calculator screen. ...... They would continue with the process until they key in all of the values. At the end, when they hit the equals sign, it's like magic to them because if they did it right, they will end up with the number I told them to start with. Sometimes they will give me a little , "YEAH!" when it is right.... they came up with that part on their own. (Don't you just love it when they do that!)

**expanded form**too. I used it to type some pictures out to show you the process used in the problem mentioned above.

Click on the image to enlarge. .... not on the 'p' that will pop up. :-) |

**expanded form activity**into my teachings of

**expanded form**and place value. The kids LOVE using the calculators! I hope you will have fun trying out this bright idea in your classroom.