Sunday, August 24, 2014

Introduction to Algebra

One day Chota Bheem and Raju had a strong urge to eat ladoos. They decided to visit aunt Tuntun. Tuntun owns a ladoo shop. When they reached the ladoo shop, they saw that aunt Tuntun was busy making ladoos.

Bheem greeted aunt Tuntun "Good Morning aunt Tuntun"
"Good Morning Bheem, what are you guys upto", said aunt Tuntun
"Oh nothing much aunt, we are hungry. Can we eat some ladoos", said Bheem
Tuntun retorted, "Yes but there is a condition. You will have to explain me the concepts of algebra. I need to teach algebra to Chutki"
Bheem , as you know is an intelligent guy and mathematics is fun to him.
He said "Ok Aunt let us start from the basics. Do you know what is the difference between a constant and variable"
Tuntun said "No"
"Ok , let us learn it" said Bheem
Bheem then sat beside Tuntun and asked "Aunt , how many ladoos do you make everyday?"
Tuntun said "One thousand and fifty"
"Oh that's a lot", said Bheem. He again asked , "Is that number always the same, does it change ?"
"No, it is always the same ", said Tuntun
Bheem told " then that is called constant. A constant will always be a fixed value. So, in your case the number of ladoos that you make daily is always a constant"
"Now tell me, do you always have the same number of people visiting your shop", asked Bheem
"No, it always varies", said Tuntun
"Ok, so anything that does not have a fixed value, but may be assigned a value based on the need is called a variable or a literal", said Bheem

In Algebra, Constant and Variable are very important concepts

A constant always has a fixed value . For example 5,6,7,100, 99.78 all are constants
A variable does not have a fixed value, its value varies based on the requirement. In algebra we denote variables using letters like x,y,z,a,b,c etc.

Let us take an example to understand more

Tuntun makes 1000 ladoos daily , she sells a portion of those ladoos to her customers daily.

In the above statement , 1000 is constant but the number of ladoos sold is a variable( which can be denoted by x)

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