Friday 14 December 2012

Multiply table

Everyone during ours childhood time was required memorize the multiply table.
How to teach and let the pupils remember all the multiply table with effective way?

Let see some advice to let children have a effective way of learning:

1.Make sure you hav

e the time to study with your child, and that they are not tired or preoccupied with other things.


2.Reward with fun, joy and your and their appreciation of learning -- not money or much material, to not spoil their love of learning. Of course, the usual snacks, drinks and such are great.


3.Ask your child to bring you their math book, so you can see exactly what they are studying, and the teaching method used in school.


4.Study "only" one or two rows of the table each time.

  • Don't skip around at first.

5.Have a number line handy showing the numbers 0 through 100 for finding the pattern of each kind of multiples of any factor.


6.Point out that each consecutive multiple is separated by a certain number of spaces or boxes, for the answers... Like ask: "How many spaces separate the 3's?" Answer: That would be 3; so that is every third number on the line.


  • Then when you are working on the multiples of 4, ask the child "Please count across the number line using four, and circle all the multiples of 4."

7.Show how each multiple in a row can be found by repeatedly adding the same number. Multiplying is based on adding; but it is not adding. For example, the multiples of 3 ---6, 9, 12, 15, 18, etc--- can be found by starting at 6 and repeatedly adding 3 to each number to get the next one... but don't do it all day long.

8.Show your child that the first row matches the first column, the second row matches the second column, etc. This means that the order of the number does not affect the answer. 3 x 7 = 21 and 7 x 3 = 21.

9.Discuss patterns in the whole chart. For example:
  • All the multiples of ten end in zero.
  • All the multiples of 5 end in either 5 or 0 and are half as large as the multiples of ten.
  • Some numbers, like 24, are listed under several different factors: 2 x 12 = 24, 3 x 8 = 24, 4 x 6 = 24
  • Special facts: The diagonal line between 4 and 100 that splits the table has the same two factors: 2 x 2, 3 x 3, ... and so:
    • 2 x 2 = 4, 3 x 3 = 9, 4 x 4 = 16, 5 x 5 = 25, 6 x 6 = 36, 7 x 7 = 49, 8 x 8 = 64, 9 x 9 = 81, 10 x 10 = 100, and you can do 11 x 11 = 121 and 12 x 12 = 144 as bonus... advanced

10.Learn those as the "Squares of Numbers". The square of 2 is 4; the square of 3 is 9; the square of 4 is 16 -- etc.: for 2 through 10 (up to 12 sometimes).

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Children learning definitely need involve both teacher and parents.
Let us work together to build up ours chilren!!

Friday 7 December 2012

ABACUS

Now day do any children still know what is Abacus?

Or do you know what is abacus?


Abacus is one of the important calculating tools used by Chinese before calculator and computer was created.


The above picture can shows how important abacus was using in those day.

Introduction of Abacus

Abacus Origin

The origin of counter abacus with strings is however unknown but it was used in India, Mesopotamia and Egypt. Later China played an essential role in the development and evolution of abacus. The most popular abacuses are the roman abacus and the Chinese abacus suan pan.算盘

Abacus Layout

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Now day, abacus can be a tool to training pupils thinking optimize the brain from child time.
As a teacher, i will brain some abacus to school and teach the pupils about abacus and ask them try to calculate the problem given.

Let have fun with you pupils with ABACUS!!

Saturday 10 November 2012

Fun Mathematis

Fun Mathematics

As a teacher, increase an interest in Mathematics among pupils is one of my main challenge.
In this post, i share some the information regarding how to make the mathematics become fun and subsequently can improve the interest of pupils.

1. Animation and Songs

Animation always a good tool to attract the pupils attention.
Showing a video clips before starting a lesson definitely can increase the interest of pupils to learning. Besides, it can make the lesson become easy to be understand.

Sing a song can also make the pupils easy to memories the important note.
  
The video above can let pupils more easily to understand "fraction" and the term "numerator" and "denominator". 

2. Fun quiz 

Let have fun quiz in the class, this can let the pupils scratching their head a bit and make the classroom environment become more fun.

How about let us try this....
Take 1000 and add 40 to it.


Now add another 1000.


Now add another 30. Another 1000.


Now add 20. Now add another 1000. Now add 10.


What is the total?
What is your answer by just using your head not pen/paper/calculator?
Did you get 5000?
Let use calculator to check again....have fun..


If you reading this blog and have any others idea, please feel free to let me know.

Wednesday 31 October 2012

The Power of---------PI ( π )

Finally I've opened my first ever blog - - - The Math World.

In this blog, I've choose the "π" to be my background wall paper.

The reason I've chosen it is because "π" has many interesting properties .








  The easy way to describe "π" is:



ratio of a circle's circumference C to its diameter d ( π = C/d )

T

herefore, we can simply calculate the circumference by using formula:

circumference = π x diameter
Pi is known to be an irrational number it means that the digits never end or repeat in any known way.But calculating the digits of Pi has proven to be an fascination for mathematicians throughout history.


Some spent their lives calculating the digits of Pi, but until computers, less than 1,000 digits had been calculated.


Did you know the first 1000 digit of π?


The answer:-

3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 3421170679 8214808651 3282306647 0938446095 5058223172 5359408128 4811174502 8410270193 8521105559 6446229489 5493038196 4428810975 6659334461 2847564823 3786783165 2712019091 4564856692 3460348610 4543266482 1339360726 0249141273 7245870066 0631558817 4881520920 9628292540 9171536436 7892590360 0113305305 4882046652 1384146951 9415116094 3305727036 5759591953 0921861173 8193261179 3105118548 0744623799 6274956735 1885752724 8912279381 8301194912 9833673362 4406566430 8602139494 6395224737 1907021798 6094370277 0539217176 2931767523 8467481846 7669405132 0005681271 4526356082 7785771342 7577896091 7363717872 1468440901 2249534301 4654958537 1050792279 6892589235 4201995611 2129021960 8640344181 5981362977 4771309960 5187072113 4999999837 2978049951 0597317328 1609631859 5024459455 3469083026 4252230825 3344685035 2619311881 7101000313 7838752886 5875332083 8142061717 7669147303 5982534904 2875546873 1159562863 8823537875 9375195778 1857780532 1712268066 1300192787 6611195909 2164201989

To know more digits : click me

So, do you feel that π is a very interesting element?