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SCHEME OF WORK
Computer Studies
Form 3 2024
TERM I
School


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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
1 3
Desktop publishing
Introduction Desktop publishing
By the end of the lesson, the learner should be able to:

Define desktop publishing
Explain the purpose of desktop publishing software
Explaining
Demonstration
Discussions
Newspaper
Letters
Books
Internet
Handouts
Longhorn Computer Studies by S.Mburu and C.Chemwa page 151-153
1 4
Desktop publishing
Designing a publication
By the end of the lesson, the learner should be able to:

Design a publication
Explaining
Demonstration
Discussions
Newspaper
Letters
Books
Internet
Handouts
Longhorn Computer Studies by S.Mburu and C.Chemwa page 153-158
2 1
Desktop publishing
Manipulating text and graphical objects
By the end of the lesson, the learner should be able to:

Type text using text box, text frame
Explaining
Demonstration
Discussions
Newspaper
Letters
Books
Internet
Handouts
Longhorn Computer Studies by S.Mburu and C.Chemwa page 159-162
2 2-3
Desktop publishing
Editing a publication
Formatting a publication
Paragraph formatting
By the end of the lesson, the learner should be able to:

Edit a publication
Check for spelling mistakes
Explain how to format a publication
Set indents and tabs
Explaining
Demonstration
Discussions
Newspaper
Letters
Books
Internet
Handouts
Longhorn Computer Studies by S.Mburu and C.Chemwa page 162-163
Longhorn Computer Studies by S.Mburu and C.Chemwa page 164-166
2 4
Desktop publishing
Page formatting
By the end of the lesson, the learner should be able to:

Set column guides on a page
Explaining
Demonstration
Discussions
Newspaper
Letters
Books
Internet
Handouts
Longhorn Computer Studies by S.Mburu and C.Chemwa page 171`-173
3 1
Desktop publishing
Measuring objects and text frames
By the end of the lesson, the learner should be able to:

Perform measurements using ruler guides
Explaining
Demonstration
Discussions
Newspaper
Letters
Books
Internet
Handouts
Longhorn Computer Studies by S.Mburu and C.Chemwa page 173-174
3 2-3
Desktop publishing
Formatting a graphical object
Drawing other polygons
By the end of the lesson, the learner should be able to:

Format a graphical object

Draw polygons
Print a publication
Explaining
Demonstration
Discussions
Newspaper
Letters
Books
Internet
Handouts
Longhorn Computer Studies by S.Mburu and C.Chemwa page 175-176
Longhorn Computer Studies by S.Mburu and C.Chemwa page 176-180
3 4
Data representation in a computer
Introduction
By the end of the lesson, the learner should be able to:

Define data and information
Classify computers according to functionality with illustration
Explaining
Demonstration
Discussions
Newspaper
Books
internet
Longhorn Secondary
Computer studies
Form 3, pages1-2
4 1
Data representation in a computer
Data representation
By the end of the lesson, the learner should be able to:

Represent data in digital circuits
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 3
4 2-3
Data representation in a computer
Data representation
By the end of the lesson, the learner should be able to:

Represent data on magnetic media


Represent data on optical media
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 3-4
Longhorn Secondary
Computer studies
Form 3, pages 5-6
4 4
Data representation in a computer
Types of data representation
By the end of the lesson, the learner should be able to:

Represent data in decimal number system
Represent data in binary number system
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 6-8
5 1
Data representation in a computer
Types of data representation
By the end of the lesson, the learner should be able to:

Represent data in actual number system
Represent data in hexadecimal number system
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 8-9
5 2-3
Data representation in a computer
Further conversion of numbers
Further conversion of numbers
Converting octal numbers
By the end of the lesson, the learner should be able to:
Convert binary number to decimal number system
Convert decimal numbers to binary system
Convert binary fraction to decimal number system
Convert decimal fraction numbers to binary system

Convert octal numbers to decimal numbers
Convert octal numbers to binary numbers
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 11-13
Longhorn Secondary
Computer studies
Form 3, pages 17-19
5 4
Data representation in a computer
Converting octal numbers
By the end of the lesson, the learner should be able to:

Convert hexadecimal numbers to decimal numbers
Convert hexadecimal numbers to binary numbers
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 20-22
6 1
Data representation in a computer
Symbolic representation using coding schemes
By the end of the lesson, the learner should be able to:

Explain the binary coded decimal code as a representation scheme
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 23
6 2-3
Data representation in a computer
Symbolic representation using coding schemes
By the end of the lesson, the learner should be able to:

Explain the extended binary coded decimal interchange code (EBCDIC)


Explain the American Standard Code for information interchange (ASCII)
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 23
6 4
Data representation in a computer
Binary arithmetic operations
By the end of the lesson, the learner should be able to:

Represent signed binary numbers using prefixing an extra sign bit to a binary number and ones complement
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 23-25
7 1
Data representation in a computer
Binary additions
By the end of the lesson, the learner should be able to:

Perform seven possible binary additions
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 25-27
7 2-3
Data representation in a computer
Binary subtraction
By the end of the lesson, the learner should be able to:

Perform possible binary subtraction using direct subtraction

Perform possible binary subtraction using one complement
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 27-28
Longhorn Secondary
Computer studies
Form 3, pages 28-29
7 4
Data representation in a computer
Binary subtraction
By the end of the lesson, the learner should be able to:

Perform possible binary subtraction using twos complements
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 29-30
8 1
Data processing
Introduction
Data processing cycle
By the end of the lesson, the learner should be able to:
Define data information and data processing
List stages of data processing
Describe each stage of data processing
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 32
8 2
Data processing
Data processing cycle
By the end of the lesson, the learner should be able to:

Explain the data input
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 34
8-9

Mid Term

9 2-3
Data processing
Data processing cycle
Description of errors in data processing
By the end of the lesson, the learner should be able to:

Define processing
Explain the sorting of data


Explain the errors in data processing
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 34
Longhorn Secondary
Computer studies
Form 3, pages 34-36
9 4
Data processing
Data integrity
By the end of the lesson, the learner should be able to:

Explain the data integrity
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 36-37
10 1
Data processing
Data processing methods
By the end of the lesson, the learner should be able to:

List and describe the methods of data processing
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 37-39
10 2-3
Data processing
Computer files
Elements of a computer file
By the end of the lesson, the learner should be able to:

Define computer files
Give the types of computer files


List the elements of a computer
Describe the listed elements of a computer
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 39
Longhorn Secondary
Computer studies
Form 3, pages 39-40
10 4
Data processing
Classification of computer files
By the end of the lesson, the learner should be able to:

Classify computer
Differentiate between logical and physical computer files
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 40
11 1
Data processing
Types of computer files
By the end of the lesson, the learner should be able to:

Discuss the types of computer processing files
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 40-41
11 2-3
Data processing
File organization methods
File organization methods
File organization methods
By the end of the lesson, the learner should be able to:

Discuss the file organization methods

Explain the random or direct file organization
Explain the serial file organization
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 41-42
Longhorn Secondary
Computer studies
Form 3, pages 42
11 4
Data processing
Electronic data processing modes
By the end of the lesson, the learner should be able to:

Describe electronic modes for electronic data processing
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 43-44
12 1
Data processing
Electronic data processing modes
By the end of the lesson, the learner should be able to:

Describe time-sharing, batch processing, multiprocessing and multiprogramming
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 44-45
12 2-3
Data processing
Elementary programming principles
Electronic data processing modes
Introduction
By the end of the lesson, the learner should be able to:

Explain advantages of electronic processing
Explain disadvantages of electronic processing


Define programming
Describe the terms used in programming
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 45-46
Longhorn Secondary
Computer studies
Form 3, pages 47-49
12 4
Elementary programming principles
Levels of programming
By the end of the lesson, the learner should be able to:

Describe low-level languages
Explaining
Demonstration
Discussions
Newspaper
Books
Internet
Longhorn Secondary
Computer studies
Form 3, pages 49-51

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