TERM – 2^{ND} TERM
WEEK ELEVEN
Class: Senior Secondary School 1
Age: 15 years
Duration: 40 minutes of 5 periods each
Date:
Subject: Geography
Topic: GEOGRAPHICAL REPRESENTATION OF STATISTICAL DATA
SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to
INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers,
demonstration, videos from source
INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures
INSTRUCTIONAL PROCEDURES
PERIOD 12
PRESENTATION 
TEACHER’S ACTIVITY 
STUDENT’S ACTIVITY 
STEP 1 INTRODUCTION 
The teacher provides the diagrams used for representing geographic data and explain how they are used. 
Each student mentions statistical diagrams used in representing geographical data S 
STEP 2 EXPLANATION 
Teacher discusses the advantages and disadvantages of each data diagram. 
Students in small groups, identify the advantages and disadvantages of each statistical diagram. 
STEP 3 DEMONSTRATIO N 
Teacher aid students to construct different statistical diagrams used in representing geographical data. 
Students in pairs, construct different statistical diagrams used in representing geographical data. 
STEP 4 NOTE TAKING 
The teacher writes a summarized note on the board

The students copy the note in their books 
NOTE
GEOGRAPHICAL REPRESENTATION OF STATISTICAL DATA
Statistical data representation involves using visual tools and techniques to illustrate spatial patterns, distributions, and relationships within geographical data. Geographers often employ various statistical graphics and maps to convey information effectively. The following are diagrams used for representing statistical data.
1. Bar Chart: Consists of rectangular bars, where the length of each bar corresponds to the value it represents. It is used for comparing values across different categories.
Advantages of using bar chart to represent statistical data
Disadvantages:
2. Pie Chart: : Circular chart divided into slices, each representing a proportion of the whole. It's displays the parts of a whole and illustrates the percentage distribution.
Advantages of pie charts to represent statistical data
Disadvantages:
3. Line Chart: Connects data points with lines, showing the overall pattern. It's depicts trends and changes over a continuous interval.
Advantages of using line chart to represent statistical data
Disadvantages:
4. Histogram: Bars represent ranges of values, and the height of each bar shows the frequency of data within that range. It's represents the distribution of a continuous dataset.
Advantages of using histogram to represent statistical data
Disadvantages:
EVALUATION: 1. What is statistical data representation?
CLASSWORK: As in evaluation
CONCLUSION: The teacher commends the students positively