Monday, November 16, 2009

Studying for the exam about Fractions





Hi, Kids. By the end of this task, you will be able to
  • Identify what topics about fractions you know and what topics you need to study more
  • Explain what we have been studying in class: comparing fractions, finding equivalent fractions and using benchmarks.

    Average online time: 20 min
    Average offline time: 20 min
Your job is to choose any of the following topics and briefly explain it. You might include an example. Below each topic, you’ll find some WebPages you are encouraged to look at in order to have further information. In addition, there are some questions to help you write down your comment.


TOPIC 1: WHAT IS A FRACTION?
a) What does the numerator/denominator tell you?
b) How is a fraction different from a whole number?
c) What should I keep in mind when asked to graphically represent a fraction?

WebPages
http://jamit.com.au/htmlFolder/FRAC1001.html#definition
http://www.visualfractions.com/EnterCircle.html


TOPIC 2: FINDING EQUIVALENT FRACTIONS
a) What does it mean to have equivalent fractions?
b) How can I find an equivalent fraction to the one given by the teacher?

WebPages
http://www.bbc.co.uk/schools/gcsebitesize/maths/number/fractionsrev2.shtml
http://www.mathsisfun.com/equivalent_fractions.html


TOPIC 3: COMPARING FRACTIONS
a) What methods can I use to compare fractions?
b) What should I keep in mind when using drawings?
c) What are the steps involved when comparing fractions using LCM?

WebPages
http://es.video.yahoo.com/watch/3010859/8604086?v=3010859
http://www.graspr.com/videos/Comparing-Fractions-Tutorial-by-Mr-Lee-1
http://www.bbc.co.uk/skillswise/numbers/fractiondecimalpercentage/fractions/comparingfractions/index.shtml


TOPIC 4: USING BENCHMARKS
a) What is a benchmark?
b) What do we use it for?
c) What procedure should I follow when asked to compare a fraction to 0, ½, & 1?
Please refer to your notebook. :)

See you around!

23 comments:

  1. AnonymousNovember 17, 2009 at 4:52 p.m.

    Topic 3: Drawings and division.

    The drawings have to be equal.

    THe multiples can be used for finding leas common denominator.

    By santiago cruz 5a

    ReplyDelete
  2. Ana Valentina :)November 17, 2009 at 5:41 p.m.

    Hy miss how are you im doing this comment i think before the time because i am sick and i think that is for tomorrow.
    I choose topic 4:
    When i am comparing fractions I use a benchmark because the definition says:A benchmark is a point of reference which something can be measured (how big the fraction is),finally when i am comparing fractions i make a table like this
    0to1/2|1/2to1|morethan1| to classify the fractions and i know where it goes because i put a benchmark in the place where it goes.
    tips:if the numerator is bigger than the denominator it means that the fraction is bigger than 1 and I need to make the number line more bigger.
    tip 2:to know how large you need to make the benchmark look at the denominators and make it that large if the denominator of the fractions are 4 and 2 you can make the number line of 4 cm long because 2 is a factor of 4 and this number is also a denominator so you can use it.
    Ex:if my numbers are 3/4 2/8 7/8 and 10/8 my number line needs to be 8 cm long but one fraction is 10/8 so i need to make bigger the number line like 2 centimeters long and I need to but bench marks each cm an in the first one i put a 0, in the middle of the number line a 1/2 and in the last one i put a number 1 but remember to complete the table in 0 to 1/2 space will go:2/8, in 1/2 to 1 space will go: 3/4 and 7/8, finally in the more than 1 space will go 10/8.
    bye
    att:ana

    ReplyDelete
  3. AnonymousNovember 17, 2009 at 5:56 p.m.

    HI MISS.

    AN EQUIVALENT FRACTIONS ARE THE FRACTIONS THAT CAN BE WRITTEN IN DIFFERENT WAYS BUT STILL MEAN THE SAME.

    WE CAN FIND AN EQUIVALENT FRACTION BY MULTIPLYING OR DIVIDING WITH THE SAME NUMBER THE NUMERATOR AND DENOMINATOR.

    EX : 1/2 * 2 =2/4.


    BY: LUIS GUI

    ReplyDelete
  4. Alethia,November 17, 2009 at 6:12 p.m.

    Hi, Luis Gui. Thanks for posting. Do not forget that 1/2 * 2 = 2/2 = 1, but

    1/2 * 2/2 = 2/4

    Keep in mind what you mentioned on the second paragraph: we need to multiply both the numerator and the denominator by the same number.
    :)

    ReplyDelete
  5. AnonymousNovember 17, 2009 at 6:23 p.m.

    hello miss I choose the topic number 2:
    1.A equivalent fraction is the same fraction withdifferents numerator and denominator.
    2. You can find a equivalent fraction multiplying by any number.
    BY: Jose

    ReplyDelete
  6. AnonymousNovember 17, 2009 at 6:36 p.m.

    OK MISS THANKS...


    BY LUIS GUI

    ReplyDelete
  7. AnonymousNovember 17, 2009 at 7:13 p.m.

    I would use to compare fractions lcm.
    to represent fraction in a drawing.
    First i have to put the lcm of the#,then to divided the lcm with the denominator.

    By Esteban

    ReplyDelete
  8. juanita ruedaNovember 17, 2009 at 7:14 p.m.

    topic 3
    a]the methods are drawing and finding lcm of the denominator.
    b]that each drawing have the same plenty of space
    c}first find the lcm and then nmultiply the numerator and the denominator by the number that multiply by the denominator equals to the lcm and
    when you have the same numerator in the 2 or more fractions you can compare the fractions

    ReplyDelete
  9. Alethia,November 17, 2009 at 7:24 p.m.

    Hi, Esteban. Thanks for posting. Could you please expand on your last idea? :)

    ReplyDelete
  10. Maria AlejandraNovember 17, 2009 at 7:40 p.m.

    Hi miss i choose topic 3
    1)we can do lines or circles but with circles is kind of dificult because it need to be the same circle,is more easy to do it with a big line.
    2)we should keep in mind to do the drawings of the same lenght
    3)we need to find the lcm of the denominators,then we multiplied the denominator an the numerator by the multiplication of the lcm,then it appears the result and we compare.

    ReplyDelete
  11. AnonymousNovember 17, 2009 at 7:43 p.m.

    HELLO TEACHER:
    I CHOOSE PROBLEM NUMBER 4
    I GOING TO EXPLAIN IN A PROBLEM
    5:5,10,15,20,25,30
    10:10,20,30
    30:30,60
    2/5*6/6=12/30
    3/10*3/3=9/30
    17/30*1/1=17/30
    30 IS THE DENOMINATOR
    TEACHER CAN YOU CORRECT
    DIEGO BERNAL 5A

    ReplyDelete
  12. Alethia,November 17, 2009 at 7:53 p.m.

    Hi, María Alejandra. Thanks for posting :)
    I do not understand what you mean by "then we multiply the denominator and the numerator by the multiplication of the LCM"
    Could you please expand on this idea?

    ReplyDelete
  13. AnonymousNovember 17, 2009 at 8:04 p.m.

    Hello miss,
    I choose #3
    the methods you can use to to compare fractions are: by drawing and by findidng the LCM of the denominators.

    you should keep in mind that all the parts that you draw have to be the same amount, it has to be =

    first you gotta multiply the # by 1,2,3......and when you got a similar # between the both #s you found the LCM. Then you multiply the numerator the same as the denominator the you can compare the fractions.

    by: juliana díaz :)

    ReplyDelete
  14. Alethia,November 17, 2009 at 8:08 p.m.

    Hi, Diego. Thanks for posting. I think you chose topic 3 Comparing Fractions. So far, you have properly developed the problem you invented. You are just missing the way you will order the fractions (i.e.from least to greatest). :)

    ReplyDelete
  15. AnonymousNovember 17, 2009 at 8:15 p.m.

    MISS I FORGOT THE EXAMPLE!!!!!!!!!!!!!!!!1
    who is bigger?
    3/4
    5/6
    4:4,8,12,16
    6:6,12,18 LCM:12

    3 x 3 9 5 x 2 10 the biggest
    - : - - :- fraction is
    4 x 3 12 6 x 2 12 5/6

    by:juliana diaz

    ReplyDelete
  16. AnonymousNovember 17, 2009 at 8:37 p.m.

    hi, miss I choose topic 2 an equivalent fraction is diferent fractions that represent the same amount
    you can find a equivalent fraction by multiplying or dividing the fraction
    by mateo

    ReplyDelete
  17. ana valentinaNovember 17, 2009 at 9:41 p.m.

    miss do I explain in a good way because i make my best effort in the explanation sorry for the long

    ReplyDelete
  18. AliceNovember 17, 2009 at 9:43 p.m.

    Hi miss I choose Topic #2:
    a)Equivalent fractions depend ontake different forms in which you can take some different fractions but that have the same amount of pieces
    EX:
    50/80=25/40=5/8
    b)You can find an equivalent fraction by making this:
    First:We have to look for a number that can divide the same amount in the numerator and the dinominator until it canot be more divisible

    ReplyDelete
  19. Alethia,November 17, 2009 at 9:44 p.m.

    Ana you did a good job :) Congrats

    ReplyDelete
  20. AliceNovember 17, 2009 at 9:47 p.m.

    Zorry miss to searching too late, is that I was looking all the pages and too you don't remember that I said you that I have extrarriculars and I arrive late (at 7:30)?
    Bie miss I see you tomorow.

    ReplyDelete
  21. AliceDecember 1, 2009 at 6:59 p.m.

    Hola soy Alicia Usme, porfa metanse a mi blog.
    Alice Blog:http://www.aliceblogesovioquees.blogspot.com

    GRACIAS!!!!!!!

    ReplyDelete
  22. laura espitiaJanuary 18, 2010 at 3:46 p.m.

    hi miss i dont understand so much i think is to choose some of that topics if it is like that i choose number 4



    att:laura espitia

    ReplyDelete
  23. laura espitiaJanuary 18, 2010 at 5:33 p.m.

    hi miss i think you allrady have another comment of me so i want to send you other and to tell you that i understand more because y enter to de pages you gave us so i understand more the topics and i study so i remember some things.

    att:laura espitia

    see you tomorrow!!!!!!

    ReplyDelete

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