## Tuesday, April 27, 2010

### Solving Equations

Equation-a mathematic statement with two expressions that have the same value.

Eg. X + 2 =3

X = Expression
2 = Equation
3 = Expression

2B + 1 = 5

c = Cup.

c + OOOO = c + 4

2c + 3 =

2 = Numerical Coefficient
c = Variable
3 = Constant

Writing Expressions-An expression can be written using a single constant,variable,or a combination of operations with constants,variables,or numerical coefficients.

2y-7
2 = numerical coefficient
y = variable
- = operation
7 = constant

Write The Equation
c + 3 = 7
4 + 3 = 7
c + OOO = OOOOOOO
OOOO + OOO = OOOOOOO

c + c + OOOO = OOOOOOOOOO
constants = 4 and 10

Home Work!!
show using cups and counters 4 times a number minus five equals seven.
Write as a Expression
I.D variables,coefficients and constants.

1. The 2b+5 goes with the picture. Sorry it didnèt move beside it.

2. Great post Katerina!!! It is very neat. One thing you could do next time is not leave too many spaces. Otherwise great job!!!

3. Great job Katerina! It looks very neat and i link the link you gave us. Next time don't leave a lot of spaces but other than that, great job.

4. Cool video. Very good post

5. Great post, Katerina! It's very well organized and I like how you changed the colors for the important words. Other than that, it was very well done.

6. Good job Katerina. I like how your scribe is neat and organized. I also like how you changed the colour of some of the words. Next time, try not to leave to much space in between the words.

7. Great post katerina it very understandable and neat but try not to leave too much spaces and instead of leaving spaces you could just color it with a different one so its much noticeable and overall great job.

8. Nice post, Katerina. I liked how you used different colors on your scribe and how it's neat and organized. Next time, try to not leave too much space. Other than that, good job.

9. Great post, Katerina! It's easy to understand and I like the colours you chose. It wasn't distracting. Next time, try not to leave so much space. Overall, it was well done.

10. Awsome post Katerina ! Very good overall it was very easy to read and see .

11. Great job Katerina. I like the colour and it is well organized.

12. Nice job Katerina, i like how you organized everything and changed some of the font on the more important words. But next time try not to leave so much space.

13. Goood job Katerina I liked the link.

14. Good job Katerina I liked the picture and I can't really see any thing wrong with it.

15. goood job, i like the link

16. Good post but next time you should add more colour to make it more intersesting

17. Nice job, Katerina. I liked the video and thought it was pretty helpful. Next time try not to leave spaces in your work.

18. Nice post, try not to leave so much spaces.

19. Nice job, it was organized , put next time you should try not to leave too many spaces.

20. good job. it was good, but try not to leave lots of space.

21. Great job Katerina! The scribe is very organized and neat. It would be nice if you didn't leave too much space.

22. Nice Post Katerina, try not to leave a a lot of space next time.