October 20, 2011

Scientific Notation

Hi class!!! I don't know very weel what I have to do but I go to start.

Today in class we studied the Scientific Notation.

A number with a scientific notation has always two parts:

- A decimal number n verifying that _

- A power of 10 with an integer number as exponent.

For example: 300.000.000= 3·108

Then we have done some exercise about the scientific notation,that are: Page 42 (13-15)

13.a)493000000= 4'93·108 d)12'00056= 1'200056·10

b)315000000000= 3'15·1011 e)253=2'53·102

c)0'0004464= 4'464·10-4 f)256'256= 2'56256·102

14.a)0'247·108/ 2'47·107

b)24'7·108/ 2'47·109

c)0'247·10-8/ 2'47·10-9

red= important things

blue= the exponents

I think that that's all:))

I put some videos to entertainment:P

http://www.youtube.com/watch?v=wduNKViP3bY

http://www.youtube.com/watch?v=NqsqM8OolIY&feature=related

http://www.youtube.com/watch?v=F9HQeKv6VyE&feature=related

21 comments:

  1. It is very strange that Mario hasn´t comment yet. AJjajaja good post

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  2. I've just arrived home!

    Well done Zuriñe! ;)

    Next Monday we're going to review the operations involving scientific notations, and after that we may play a little game :D

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  3. SURPRISE.

    Tristán, today we've been summoned to gather on a concentration at Antonutti's Park at 17.30. The general strike is set to be next Thursday ;)

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  4. Today I´m not going to go to the strike. It´s boring!!!!!!!

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  5. I've finished my studies a few years ago, so it's your education the one that's ind danger, not mine... The choice is up to you all!

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  6. My mother went yesterday to the strike. It is also your education because you work in it!

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  7. i think that it is not homework

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  8. You're right, there's no homework :)

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  9. mario, can you tell me the homework of today?

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  10. Hi Allo! How are you? I hope you just got the flu, or something similar... ;)

    Paula is the one who's going to create today's entry :D but I can summerize it for you ;)

    1) First we reviewed the exercices you gave me last week.

    2) Then we learned how to operate (+, -, x, :) numbers involving scientific notation (it's very easy).

    3) Finally, we (tried to) play(ed) a MEMO game with scientific notation quantities ;)

    I only asked you to do one exercice for tomorrow: exercice 70 ;)

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  11. ok thank you. i'm bad. "seguramente" I won't go to class the next days because i've a "neumonia"

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  12. OMG!! Neumonia... what a terrible disease!

    Don't worry! Take care of yourself ;) I hope to see you soon back in class :D

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  13. than you :)
    can you give me the exercises that they have been doing these two days?

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  14. I was told that you gave a voluntary paper with exercises.
    if you have it in the computer, can you send it to my email? (allo.radejo@gmail.com)

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  15. Hi Allo! I hope you're feeling better today :)

    Ruben is supposed to create today's entry explaining what we did today :D but don't worry, I'll send you the "theory" sheets we've worked with this morning and that bulletin :)

    That bulleting is nothing but a recopilation of exercices involving scientific notation, approximation and errors. I'll upload the solutions next monday (if you print it you'll have enough space to do the exercices in the page :D )

    Remember that it's just a practising bulleting and you're not supposed to give it to me ;)

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  16. yes i feel better today :)
    thank you for the email.
    i will try to do the papers.
    i've already seen the entry of ruben.
    in the exam!! i have an A , isn'T it?

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  17. Your information happens to be true, allo ;)

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