Linear Expressions On One Side And Numbers On The Other Side
Chapter Name : Linear Equations In One Variable |
Sub Topic Code : 104_08_02_02_01 |
Topic Name : Linear Expressions On One Side And Numbers On The Other Side |
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Sub Topic Name : Solving Equations Which Have Linear Expressions On One Side And Numbers On The Other Side |
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Introduction
In the question, total amount is the unknown quantity and it has a power 1. When we know the cost per second and no of seconds spoken, the product of these 2 will give the value of the unknown amount. Here, amount is on one side and the numbers at the other.
Pre-Requisites:
Basic knowledge about arithmetic operations,
Activity:
The relation between unit conversion from kilometers to miles is a linear equation with the unknown miles on the linear expression side and the known kilometers in number side.
Real Life Question:
How much did it cost for talking 90 seconds on your cellphone?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Linear Equation | The power of the variable(s) should be 1 |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Map | On a map, set destinations and their distance in kilometers. Ask the student to find the distance in miles. |
Real life uses :
Conversion of units from one scale to other, exchange rates, telephone tarrif
Practical examples around us
| Examples | Explainations |
|---|---|
| Money Exchangers | USD= 55.4*INR (Everyday value changes) |
| Cell phone tarrif | The seconds plan in the prepaid sim can be calculated as rate = 1.2 x time in seconds. Here rate is the variable, we know how much time we spoke. |
What you learn in Theory:
An Intro on how to solve equations with linear expressions on one side and numbers on the other side of the equality.
What you learn in Practice:
This has many applications in everyday situations as well as higher maths and applied science and commerce. This topic throws light on the importance of the concept.