Wednesday, October 27, 2010

Estimatating using perfect squares, prime factorization and number line

Homework from yesterday
- Estimating using perfect squares

Add Image
200- in between the perfect squares 196 and 225.
- 225 is bigger than 200 so that number won't work
- so that leaves us with 196 aka 14x14
- If 196 is 14x14 that means that 200 will be 14._x14._=200 because we know that 225 which
Is to big being 15x15 or the next highest perfect square.

37-in between perfect squares 36 and 49
- 49 is bigger than 37 so it won't work
- which leaves us with 36 aka 6x6
- so if 36 is 6x6 that means that 37 will be 6._x6._=37 because we know that 37 which
to big being 7x7 or the next highest perfect square

850- in between perfect squares 841 and 900
- 900 is bigger than 850 so it won't work
- which leaves us with 841 aka 29x29
- so if 841 is 29x29 that means that 850 will be 29._x29._=850 because we know that 900 is
to big being 30x30 or the next highest perfect square

77 - in between perfect squares 64 and 81
- 81 is bigger than 77 so it won't work
- which leaves us with 64 aka 7x7
- so if 64 is 7x7 that means that 77 will be 7._x7._=77 because we know that 81 is
to big being 8x8 or the next highest perfect square

Number Line

-1-25
-Different colours for the pefect squares
-show what x what = the number your trying to get to

Im sorry my computer won't let me put pictures or vidoes.

so heres a link for a Prime Factorization video.
and another link for prime factorization which is a website which has pictures
and then here is my actual link (make sure to turn off the volume if the play the game)








9 comments:

  1. Great job Emily. I am not the best at this estimating stuff but I'm sure that people with future comments will say it was great as well. I liked how you highlighted the numbers red, the link that nice blue and I love that purple. Thanks for putting down today's homework

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  2. Great post Emily. Shame about the pictures,and video, though. I especially liked the game you put a link to, it made the post a lot more entertaining. It also put my skills to work so I could see if I truly understood the lesson. Keep up the good work.

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  3. Nice post, Emily! Sorry that you can't put the pictures and the video, that's alright. I liked the colors you used to highlight the important words, they're quite bright and easy to catch the reader's eye onto. The link to the game made your post a lot more interesting, and it also helped people understand what the lesson was about. Keep up the great work!

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  4. Good job, Emily! I liked that you had several links to go to and you used different colours of some words to show importance, but I thought that the way you laid out your examples was a bit confusing. Other than that, you did a good job!

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  5. Great scribe, Emily! It really brought my attention to the colorful important words!

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  6. Great job Emily. I really like the links you gave, especially the one with the game. I thought it was fun and educational. Good job and keep up the good work Emily. Also hope to seeing more of your posts.

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  7. Great post Emily! Before I'm really confused but thanks to your post I now understand it better. The game was really fun & educational.

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  8. Great post Emily, I really didn't like that you didn't put a picture or a video for your post, but I understand computers can be like that at sometime. I really that you were being really detailed about the perfect square.I also enjoyed at different sites mostly the math playground, great job.

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  9. Great job, Emily. I liked how you gave a few links to us, it was really helpful. I also liked how you made your post nicely detailed. And the colors caught my attention. Sorry that you couldn't add pictures and a video, but that's okay. You did a nice job.

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