Introduction
Chapter Name : Introduction To Graphs |
Sub Topic Code : 104_08_15_01_04 |
Topic Name : Introduction |
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Sub Topic Name : A Line Graph |
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Introduction
What is a line graph?
Pre-Requisites:
Basic knowledge about proportions and graphs
Activity:
For every interval a certain number of various colored bands will be used. Each band is represented with a different line.
Real Life Question:
What is the trend of stock markets today compared to yesterday?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Graph Line graph | A graph is an abstract representation of a set of objects where some pairs of the objects are connected by links A line graph displays data that changes continuously over a period of time |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Rubber bands of different colors | Scale each rubber band according to its color in feet. Ask the student to form the front view of a 100x40 foot building using different bands. Form intervals of 10 feet in both directions and represent each band with a different line on the graph and plot the number of them used in each interval. |
Real life uses :
Representation of sales, surveys, numbers
Practical examples around us
| Examples | Explainations |
|---|---|
| Sales Surveys | The sales of various products of a company are shown using line graphs by dividing the year into production intervals Surveys use line graphs to represent the data found with each value given in each interval. |
What you learn in Theory:
A line graph usually shows a visual comparison between two quantities using a series of line segments. The lines are joined end to end. It is used to display data that changes over one factor like time or interval.
What you learn in Practice:
Using various scaled bands of different colors, the structure can be formed uniquely in different ways using different number of different bands. The dimensions of structure are divided into several equal intervals. Each band is represented by a line. The number of bands of a particular color used in a particular interval is represented on the graph using points and the points are joined end to end.