## Wednesday, April 14, 2010

### April 14 2010 Integers

Zero Pair
-a pair of integer chips with one chip reperesenting +1 and -1.
eg. +1 -1
The pair represent 0 because
(+1) + (-1) = 0
Opposite Integers
-two integers with the same numeral (number) but different signs. (+ -)
eg. + + - -
+2 -2
You can use these symbols to help add positive and negative integers.
eg. + + + + + - - - + - zero
+ - zero
+ - zero
+ +1
+ +1
5 + (-3) =2
Show using chips
(+2) + (+3) (-1) + (-5) (+4) + (-2) (+3) + (-6)
++ +++ = ++2 - - - - - - - - -2 ++++ - - + - 0 +++ - - - - - - + - 0
++2 - -1 + - 0 + - 0
+ 1 - -1 + 1 + - 0
- -1 + 1 - -1
- -1 - -1
- -1

Here's a link to a good site

http://www.mathsisfun.com/positive-negative-integers.html

Sorry about having no pictures something was wrong with saving it.

Remember!!!

Pg.313 to 315 is homework!!!

Comment and suggest if you see any mistakes. Thanks

1. Sorry about the "show using integer chips" part. It messed up. Sorry

2. Good job Nils! You included all the notes we were given today and you explained everything well. I think that instead of just writing - and +, you should've used circles. Anyways, you posted both a link and video which was great. Thanks for the reminder of the homework! (:

3. Great job Nils! You explained everything well and it was easy to understand. I like the video you gave us, very helpful:) I also liked how you reminded us about the homework, overall, good job:)

4. Great job Nils! You included all the notes we took in class in your post and everything made sense. Sometimes reading the ++, -- things confused me,the video you put was good and thanks for the remider about the homework, good job!

5. Good Job Nils! don't worry about the integer chips, we can still understand it. I guess? Thanks for the video, that helped me a lot. Also, nice link you posted. It can really help people that don't get integers. Thanks for posting homework. Keep up the good work, Nils.

6. Good job Nils. You had a nice blog. Although i found the font rather small and the positive and negative signs confused me. You posted a link and video. Other than that, everything else was well done :)

7. Nice Job Nils. You made a nice blog good job !!!!!!!

8. Good Job!. Very well explained and I liked the way you used different colours and added a video. Good Job!

9. Good Job Nils. The post was very well explained. I liked it when you changed your colours when theres inportant stuff. The one thing i liked the most was a video. Anyways Excellent Job ! :)

10. Nils, you did a wonderful job! You took the extra time to find a video along with a link. So, I thought that was well done, but next time you should make your font a little bit bigger and try to explain your examples in a way that it's easy to follow. But other than that, you did a wonderful job.

11. Thanks alot Nils!Did a great job.Nice vid,pics,and link.But next time make the font a little bigger.Anyays,great job!:)

12. Nice job Nils! the video was very helpful and you explained everything goodly :) but when you were using the + and - signs it was sort of confusing so I think you should have made a picture instead or spaced it out more. anyways good job

13. Good job nils, I liked what you did,
but what ana said before using the +'s and -'s got sort of confusing, maybe you should use pictures instead of using that, it'd make alot of things more simplier for you, and for us. But other than that you did a great job, good job !

14. Good post, Nils! You included all the notes and it was neat. I liked your video and link. If i were to change anything, the show using chips part was confusing to understand. Other than that, great job!

15. Great job! Your post was very informative. I liked how you used colouful positive and negative signs, but yes, it did get messed up in the 'show using chips' part. I liked the fact that you put a video up and put a bright red homework reminder. However you could improve by using brackets when using your positive and negative signs eg(++) - (-) = (+). Other than that, good job.

16. Good job! I loved how you used colorful drawings so it woul be easier to see cause they are pretty small.Again, Good job Nils( or elmo)
-Sophia:)

17. good job nils i liked what you did with the video and the colours. next time you should put a picture but any ways good job

18. Great job nils i really liked ur post you put all the notes i liked ur vedio a lot but maby think of added a video next time but other then that it was awesome

19. Good post Nils(: I like how you explained what integers are and how you colour-coated the symbols. One thing you can improve on was try to make the font alittle bigger.

20. Good Job, Nils:)
i like the video especialy, and how it really explained and helped me understand. Next time you could try to make the font a little bigger.

21. good job Nils. i like the video and the pic and it was easy to understand