MINISTRY OF PRIMARY AND SECONDARY EDUCATION

COMPONENT C

FACILITATOR’S CALA GUIDE

LEARNING AREA : COMBINED SCIENCE

LEVEL : O LEVEL
CLASS : FORM 4
CALA TYPE :
SYLLABUS TOPIC : DATA PRESENTATION
SYLLABUS SUB TOPIC : Tables, Tallies and Graphs
DURATION: 2 WEEKS

COMPETENCES/SKILLS
 Data collection
 Data presentation
 Organisation and creativity
 Researching and problem solving

BACKGROUND
It has been realised that learners lack skills of data collection, data presentation and interpretation especially when solving everyday challenges faced by
society. In this practical activity you are expected to assist local entrepreneurs who want to stock car paint in their hardware shops but have no idea of
which paint colours will be wanted by most customers. You will collect data on colour of cars passing through a main road in your area in order to give
them ideas of popularity of different paint colours in cars.

HOW LEARNER’S WILL BE ASSESED?

Learners will be assessed in their ability to:

1. Collect data on colour of cars passing through your data collection point
2. Present data in tallies, tables, graphs and pie charts
3. Interpret the data presented

CALA DESCRIPTION (40Marks)

The CALA will consist of 5 parts A, B, C, D and E. The learner is required to respond to all the 5 parts

PART A

You are to select time when you will go out to a main road and collect data on colour of cars passing by.

NB: stay away from roads during your data collection by finding a safe spot that is at least 8 metres away from the road

a. Give the following details about your execution of the task. You have to state
i) Location and place where data was collected (1)
ii) Day of data collection (1)
iii) Time of data collection (1)
b. Present the raw data collected using tallies (5)
PART B

Present the data collected on colour of cars using a table (7)

PART C

Present the data collected on car colour using a suitable graph (10)

PART D

Present data collected on car colour using a pie chart (10)

PART E: ANALYSIS

a. List 3 most common paint colours in cars surveyed in order of their popularity (3)

b. Name the 2 least popular paint colours (2)

LEARNING AREA : COMBINED SCIENCE

LEVEL : O LEVEL
NAME :
CANDIDATE NUMBER :
SCHOOL:
CLASS
CALA TYPE
SYLLABUS TOPIC : DATA PRESENTATION
SYLLABUS SUB-TOPIC : Tables, Tallies and Graphs
DURATION : 2 WEEKS
BACKGROUND

It has been realised that learners lack skills of data collection, data presentation and interpretation especially when solving everyday challenges faced by
society. In this practical activity you are expected to assist local entrepreneurs who want to stock car paint in their hardware shops but have no idea of
which paint colours will be wanted by most customers. You will collect data on colour of cars passing through a main road in your area in order to give
them ideas of popularity of different paint colours in cars.

HOW YOU WILL BE ASSESED?

You will be assessed in your ability to:

1. Collect data on colour of cars passing through your data collection point
2. Present data in tallies, tables, graphs and pie charts
3. Interpret the data presented
CALA DESCRIPTION

PART A

You are to select time when you will go out to a main road and collect data on colour of cars passing by.

NB: stay away from roads during your data collection by finding a safe spot that is at least 8 metres away from the road

c. Give the following details about your execution of the task. You have to state
4. Location and place where data was collected (1)
5. Day of data collection (1)
6. Time of data collection (1)
d. Present the raw data collected using tallies (5)

PART B

Present the data collected on colour of cars using a table (7)

PART C

Present the data collected on car colour using a suitable graph (10)

PART D

Present data collected on car colour using a pie chart (10)

PART E: ANALYSIS

a. Name the 2 least popular paint colours (2)

ACHIEVEMENT STANDARD
DIMENSIONS / CRITERIA MARK VERY GOOD MARK GOOD MARK WEAK MARK POOR

Location 8 Stating Location, Date, 6 Stating Location, 4 Stating Location 2 Stating location and
Date Time and writing the Date and writing and writing the date
Time Raw Data in tallies the Raw Data in
Raw Data in tallies Raw Data in tallies
tallies
Present the data collected on 7 Presenting Data on 5 Presenting Data 4 Presenting Data 3 Presenting Data on
labelled table with at on labelled table on labelled table labelled table with at
colour of cars using a table
least 5 Colours and their with at least 4 with at least 3 least 2 Colours and
frequencies Colours and their Colours and their their frequencies
frequencies frequencies

Present the data collected on 10 Well Labelled type of 6 Well Labelled 5 Well Labelled 4 Poorly Graph without
graph with well labelled type of graph with type of graph with labels
car colour using a suitable
axis and well labelled axis well labelled axis Unclear scale
graph Suitable scale and correct and but Poor plotting of points
Plotting of points Suitable scale but unsuitable scale
incorrect
Plotting of points
Present data collected on car 10 Neatly drawn Pie Chart 6 Neatly drawn Pie 5 Averagely drawn 4 Not Clearly drawn
with Proportional angles Chart with Pie Chart with Chart with
colour using a pie chart
and Key Proportional Proportional unproportional angles
angles but angles and Key
without Key
Analyse the 3 most common 5 Analysing the 3 most 4 Analysing the 2 3 Analysing the 2 2 Analysing the 1 most
common paint colours in most common most common common paint colours
paint colours in surveyed cars
surveyed cars and 2 least paint colours in paint colours in in surveyed cars and 1
and 2 least popular paint popular paint colours surveyed cars and surveyed cars and least popular paint
2 least popular 1 least popular colours
colours
paint colours paint colours