How Fraction and Decimals are the same

” What are you learning at School these days?” I recently asked some 4th graders..”Oh we just finished fractions and are now doing Decimals..” They told me..” Well do you know that fractions and decimals are the same thing” I poked a little just to check whether they are being given the conceptual knowledge.. “How can they be the same thingy?” One of the 4th grader piped up..”They are both different things really? Are you guys sure about it? Ok tell me how are these different?” “Welllll..they just are..” ” but how ?” I persisted..” Ok why don’t you tell us how these are the same?” They finally asked.

This was an opportunity I was waiting for.. I asked them ” Do you know that in greek DECA means 10..so if we talk about a Decade it means 10 years or if you have heard of the Decathlon in Olympics Decathlon is the combination of 10 events..I am sure you know that our number system is based on 10’s. i.e if we have to write 256 you can write it as 200+50+6?”

” Yes of course” They said. ” Do you know number 10 plays an important part in the numbers which are less than 10?” I said. ” How ?” They asked me immediately.

” Ok , lets take an example…Ussain Bolt holds the world record of 100 meters race which he completed in 9.58 seconds in 2009. here if you see we have 9 whole seconds and then there is a POINT which we call as decimal and then we have 58 after the decimal which is actually part of the whole after the decimal point the first number that comes is 1/10th of a number or we can write it as 0.1. The next number is 1/100th of a number which we can write as 0.01. Lets see what happens when we divide lets say 200 by 10

Place value in Decimals: The above can be explained as given below

200/10 = 20 We can see once divided the digit has moved to 10’s place

20/10 = 2 – here the digit has moved to the ones place

2/10 = 0.2 – The digit has become 2parts of 10’s and has moved to the 1/10th position

0.2/10= 0.02 – The digit has become 2 parts of hundred or 2/100th

0.02/10 =0.002 -The digit has become 2 parts of 1000 or 2/1000th part

“Did you notice that each time we divide the number by 10 the digit shifted one place to the right” I asked..” Yes its like magic..it slides almost..”

” So now If we go back to Ussain Bolt we understand that 9.58 is actually 9 full seconds and 58th part of the hundred so we can also write 0.58 as 58/100 or if we have to expand and write the same we can write it as

0.5+0.08 = 0.58. So if you notice the first part is 5 parts of 10 and the second part is 8 parts of 100…

“No one told us like this ..this is really simple..so if my teacher gives me 0.25 it will actually me 25 parts of 100, wow.. that means 1/4..”one of them who was faster with calculations said..”Yes it means exactly that.. ”

I was satisfied that conceptually they understood the concept..I made a mental note of teaching them the relation between Ratio, Proportion, Fraction and Percentage next time

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Finding Instant Sum and Mean using a calendar

I have been thinking of writing a blog on this for a long time..but then having a set of twin boys and my own activities has somehow come in the way or simply put I have been slightly lazy. However today as a New Year Resolution I have decided to start writing again regularly. Seems like a great achievable idea at this point of time..unless I decide to become lazy again.

Now lets see if things that we use daily can teach us some math..

Math is a fantastic and we can continue to learn it from the everyday things if we are observant enough

Do leave a comment or write to us on a2yacademy@outlook.com and tell us how you liked the article..We will continue to write on other mathematical topics every week. Keep following us here..

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Think Differently- Tricks for Addition

While teaching the double digit addition with carryover to my twin boys I was reminded of the method that one of our teachers had taught us in school to make Math fun and to take away the fear of math from our minds. The addition can be quite daunting for children when the numbers are written in a row. Try this method and see how easy it becomes for children to solve the addition problems with bigger numbers

We want to teach children math in such a way that they fall in love with it and should be able to think differently while trying to solve the problems that they find complicated..

Do try this method with kids and let us know the results..Let us also know the areas where the children might need some help or want to make it interesting we will be happy to write about it.  Do leave your comments here or write to us on a2yacademy@outlook.com

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Enjoy reading new Math tricks every week..happy weekend

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Learning how to calculate the square root of imperfect square

I have been thinking about writing about the square root shortcut for finding the square root of the imperfect square ever since I wrote the earlier one about finding the square root of a perfect square. Incase you have not seen my earlier post then please do check the same by clicking on the link http://a2yacademy.com/2018/05/09/finding-the-square-of-any-number-an-easy-way/  

We would love to hear from you. These tricks are meant entirely from the competitive exams perspective.

Let us know the area you would like us to write on and we will be happy to..do write to us on a2yacademy@outlook.com Do leave a comment if you like this article We would love to hear from you..

We will be taking up another interesting topic from our calendar series next week… Do keep on following us…

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Creating Magic Squares

Being a mother is a difficult job and has no job description as well. I love playing math games with my kids and their best friend who loves these small puzzles. As they enjoy it so much I though why not explore the area of magic squares while I am teaching these 7 years old champions addition.

Can you make few magic squares from other combinations of dates from the calendar? Leave your responses here..

We would love to hear from you. Do leave a comment or write to us on a2yacademy@outlook.com. We would also like to know the topics that you would like us to cover leave a response so that we can write about what you would really want to read on this forum..

 

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Solving the Cross Puzzle using Calendar

In my last post I had shown how we can use the calendar to make number patterns a fun exercise for children. In this article we will go a bit ahead and learn how we can use the calendar to find and solve cross puzzle patterns. I had a lot of fun teaching this to my children hope that others will also find it useful.

Let us know whether you found this helpful.Let us also know what you would like to see on this blog and we will be happy to incorporate those topics. Do leave a comment or write to us. Our mail id is a2yacademy@outlook.com.

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