Thursday, September 9, 2010

What Do Third Graders Know About Addition?

Mr. Birch's third graders have been putting together a list of statements they believe to be true about addition. Here is what they have so far:

What do we know about addition?

1.  Numbers usually get larger.

2.  You are putting things together.

3.  Adding sign is +

4.  Find the total.

5.  How many all together?

6.  What is the sum?

7.  Addends can be added up in any order to the sum.

8.           7   ----addend ------     5
            +5   --- addend ------- + 7
           12  ----  sum     -------  12

What do other third graders think about this list? If you'd care to add something, or have any questions for us, please leave a comment!




I have a question about the first item on their list. Mr. Birch's students suggest that numbers usually get larger with addition. Can you give an example of when the sum gets smaller???

1 comment:

  1. Dear Mr. Birch's Students,

    We think your addition list is smart. We like your thoughts about adding. We're wondering if you have tried adding negative numbers. We tried adding negative numbers and think you should try it.

    We were also thinking about the word "sum" and wonder if they changed the "o" in "some" to a "u". We sometimes think about addition like we're adding "some more".

    Have a good day!

    From the 3rd and 4th Grade Spring Creek Champions (and Ms. Morandi and Ms. Haswell)

    ReplyDelete