- Frequency Polygon
A frequency polygon is obtained by joining the mid points of the upper sides of the
bars of a histogram by means of line segments.
If the child is through with the idea of histogram he/she may be taught of the
nature and construction of a frequency polygon. The relation between a histogram
and a frequency polygon need to be emphasized in terms of their similarities and
differences.
Eg. : The Frequency Polygon for the data mentioned in item No.11 is as follows:
- Pictogram
Pictogram is a way of representing an information through pictures or symbols. When
a numerical data is represented in the form of pictures or symbols the idea may be
easily understood.
A pictogram depicting some numerical data may be prepared and be given to the child
for exploration.
Eg. : The Pictogram for the data mentioned in item No.11 is as follows:
600
500
400
300
200
100
0
ABCDE
