Final Cover - For Printing

Eg. : Consider the data in item 6. The data can be grouped in the form of a frequency

distribution table as follows:

Present this table in the tactile form. Counting beads, punching braille dots on

paper, etc., may also be used as techniques to tabulate data in frequency table.

PICTORIAL REPRESENTATION

11. Bar chart
    The bar chart consists of bars of equal thickness with the length/height being
    proportional to the quantity the bars represent. Bar charts are of various types such
    as vertical bar chart, horizontal bar chart, double bar chart, etc.

Note :

1. The bar-chart must have a heading.


2. Sub-divisions are to be made on the vertical axis, using a suitable scale.


3. Bars are of equal thickness and do not touch each other.


4. Each bar is assigned a heading to denote what it represents.


5. The height of each bar represents the number it is supposed to represent.

An embossed bar chart prepared on a thick sheet of paper may be provided to the

child for exploration and the features of the bar chart are to be explained simultaneously.

Eg. : The number of students studying in 5 schools in a city are as follows:

School A B C D E

No. of students 450 280 400 480 525

C-I Tally Marks Frequency

1-20 ||| 3

21-40 |||| 4

41-60 |||| | 6

61-80 |||| 4

81-100 ||| 3