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Addition And Subtraction Of Algebraic Expression
Chapter Name : Algebraic Expressions And Identities
Sub Topic Code : 104_08_09_05_01
Topic Name : Addition And Subtraction Of Algebraic Expression
Sub Topic Name : Addition And Subtraction Of Algebraic Expression
Introduction

Addition & subtractions are performed by grouping the like terms

Pre-Requisites:

Terms, coefficients and variables, Addition & Subtraction :P

Activity:

At a book stall, in a shelf, he would place books of same category in separate racks & maintain an individual count of them so that it is easy for him to pick them when a customer arrives and also so he knows how many of each type were sold.

Key Words / FlashCards
Key Words Definitions (pref. in our own words)
Addition/subtraction of expressions Group the like terms & perform the operations
Learning aids / Gadgets
Gadgets How it can be used
Dry fruits (with individual values) Whenever you give a count of dry fruits, you must group the similar ones (Almond, Cashew etc.) and then add them up.
Real life uses :

If you want to calculate the number of machinery parts in any particular machine, the varieties of each machine & no. of each of them will be considered, leading to the addition of terms

Places to visit :

Book shops, Grocery stores

Practical examples around us
Examples Explainations
Shipped goods While unloading goods from a ship, they are unloaded in groups. Has nothing really to do with an algebraic expression, but knowing the importance of grouping is needed.
What you learn in Theory:

Addition or subtraction of two algebraic expressions can be obtained by identifying the like terms & grouping them. After that, add up all the unlike terms which is in the form of an expression. This is the end result.

What you learn in Practice:

Grouping of like terms is feasible and intervenes in every phase of our life

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