Tuesday, April 27, 2010

Solving Equations

Equation - A mathematical statement with two expressions that have the same value.

EG.
x+2=3 1+1=2 --equation
x+2 is the expression and also is 3
2+3=6-1
--2+3 & 6-1 are both an expression
and the whole thing is called an equation and the whole thing is an equation
y-7=-4 3a-2=a+2

An equal sign (=) doesn't always mean the answer, it can mean it has the same value


2B+1=5



C+4= C=5
5+4
9


2C+3
2 is the numerical coefficient
C is the variable
3 is the constant

Writing Expressions - An expression can be written using a single constant, a single variable or a combination of operations with the constants, variables, or numerical coefficients.
EG.
2y-7
2-numerical coefficient
y-variable
- - operation
7- constant

Write the Equation



C+3=7




Expression - 3C-5
Variable - C
Numerical Coefficent - 3
Constant- 5



Equation - 2C+4=10
Variable - C
Numerical Coefficient - 2
Constant - 4 and 10

HOMEWORK
Show using cups and counters four times a number minus five equals seven write as expression or equation.
I.D variables, numerical coefficients, constants



19 comments:

  1. Great job, Angelique :)
    You got everything, and your posts keep getting better ! I really liked how you draw the cups on the pictures. The video helps a lot. I think next time you should put a link to a websites on the blog. The colors really made it better, to show key words.

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  2. Good job Angelique! I really like the pictures and the video. I also like how you changed the colours for the important words. Next time make the font for the definitions. Overall good job!:D

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  3. Good Job Angel-ique! i liked your pictures and the video. i also liked how you reminded us about our homework. and changing the colors on the font was a good idea.

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  4. Great job Angelique, I liked the pictures you made and the colours of them. Also great job on highlighting key words, the colours were nice too. The video was helpful and it great, thank you for it. Thanks for reminding us about the homework and I like how your blog stands out. To improve your blog you probably should have tried to add a link to a website about this topic, but good job on everything else. (:

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  5. Awsome job Angelique!It was really outstanding!The pictures and the video was really helpful. It was really colourful and was organized.Keep up the good work!

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  6. Greta job Angelique! Everything was neat and organized. Thanks for posting a video and uploading clear images for examples. Good job.

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  7. Good job Angelique! I like how you used different colors to show keywords and how you spaced everything out. I thought the video was a bit too long but it helped a lot. Next time try to find a website to improve your scribe post. GREAT JOB!

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  8. Good job Angelique! It's very organized and colourful. I like the pictures but the video confused me.

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  9. Great job, Angelique!
    You got everything, and your posts keep on getting better! I really liked how you drew the cups on the pictures. The video helped a lot. I think next time you should put a link to a website on the blog. The colors really made it better, to show the key words.

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  10. Great job Angelique!! I like how you used color to make the key words stand out, and I also like how you have pictures of the cups. Your post always gets better everytime you do it. Keep up the great work!!

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  11. Awesome job Angelique!! I really like that your post is clear and neat. You have organized very well. Keep up the great work!!

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  12. Googd job with the colour of green but more variety of colour would make it more appealing.

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  13. Great Job Angelique. Colorful pictures and good information. I like how you highlighted the key words . Great Job.

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  14. Good job Angelique.
    I like how you changed the colors of the important words, it was well organized. I also really like your images. Great job on finding a video!

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  15. Good job!It was really helpful and I think that you did a great job on your blog.

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  16. Great Job Angelique!! everything is well organized and neat.

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  17. Nicely done Angelique! I think you did an amazing job with this post. Everything is nice and neat and also very colourful. You did a great job but try to add a link.

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  18. Good Job Angelique I liked how you made your pictures, the color green made things stand out. The video helped a lot. I suggest next time try to make your fon't big so it would be easier to read. Good Job.

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  19. good job angelique your post is well organized and you have very nice pictures

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