1 INNOVATIVE TEACHING MANUAL NAME OF THE TEACHER : SANDHYA J DATE : STANDARD : IX – A DURATION : 45 Minutes SUBJECT : MATHEMATICS PERIOD : UNIT : STATISTICS TOPIC : FREQUENCY POLYGON CURRICULAR STATEMENT : The pupil understands the statistical idea of frequency and the way to construct a frequency polygon of a given data. LEARNING OUTCOMES : CONTENT OUTLINE STATISTICS - FREQUENCY
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1
INNOVATIVE TEACHING MANUAL
NAME OF THE TEACHER : SANDHYA J DATE :
STANDARD : IX – A DURATION : 45 Minutes
SUBJECT : MATHEMATICS PERIOD :
UNIT : STATISTICS
TOPIC : FREQUENCY POLYGON
CURRICULAR STATEMENT:
The pupil understands the statistical idea of frequency and the way to construct a
frequency polygon of a given data.
LEARNING OUTCOMES:
Enable the students in
(i) comprehending about the preparation of a frequency table.
(ii) constructing frequency polygon with the given data.
CONTENT OUTLINE
STATISTICS - FREQUENCY POLYGON
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CONTENT ANALYSIS:
TERMS: FREQUENCY POLYGON
FACTS:
(i) Statistics is the branch of Mathematics which deals with the organized
presentation and indepth analysis of such data and the methods of drawing logical
conclusions from them.
(ii) The presentation of numerical data can be done in the form of pictures and
tables.
(iii) Numbers used in studying some situation are called scores in Statistics.
(iv) Frequency is the number of times a score is repeated.
(v) The table prepared by using frequencies is called a frequency table.
(vi) A histogram is a graphical representation of a frequency distribution in the
form of rectangles with class intervals as bases and heights proportional to
corresponding frequencies such that there is no gap between any two successive
rectangles.
(vii) A frequency polygon is a graphic representation of a given frequency
distribution; obtained by joining the midpoints of the classes of a histogram.
CONCEPT:
FREQUENCY POLYGON
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PRE-REQUISITES:
The pupils have already learned about
(i) Frequency distribution table
(ii) Histogram
TEACHING-LEARNING MATERIALS:
Computers
Smart phones
REFERENCES:
MATHEMATICS - STANDARD IX(PART 1), GOVT OF KERALA
PUPIL ACTIVITY TEACHER RESPONSE
INTRODUCTION
Students are eager to get the topic Teacher suggests the topic “Frequency Polygon” and
advice the students collect information about it.
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PUPIL ACTIVITY TEACHER RESPONSE
Students grouped among themselves into two groups –
A and B.
Students browse about frequency polygons through
smartphones.
Group A collected details about the following:
Teacher checked the response of Group A. FREQUENCY
DISTRIBUTION
HISTOGRAM
FREQUENCY POLYGON
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PUPIL ACTIVITY TEACHER RESPONSE
Group B collected details about the following:
PRESENTATION
Akshay from Group A presented about
frequency distribution table and the
construction of frequency distribution
table with the help of the following
question:
Teacher again checked the response of Group B.
Teacher consolidated and asked students to present the
details collected.
FREQUENCY POLYGON
WITH ILLUSTRATIVE EXAMPLES
6PUPIL ACTIVITY TEACHER RESPONSE
All students started constructing frequency table
Teacher assesses Akshay’s performance and checked
whether the students are performing well.
The marks that 42 students of class 9A got
in the continuous evaluation for I.T are given below.