# ICT – Grade 08 – Lesson 01    # Investigates how instructions and data are represented in the computer

### Competency Level 1.1: Converts decimal numbers to binary numbers and vice versa

Time : 03 periods

Learning Outcomes:

• Describes Number systems with 10 and 2 as the base
• Converts decimal integers to binary and vice versa

Contents:

• Introduction to Number Systems
• Decimal and Binary Number System
• Conversion from Decimal to Binary
• Conversion from Binary to Decimal

Concepts and terms to be highlighted:

• Number system
• Binary Numbers
• Decimal Numbers
• Decimal number system has base 10 as it uses 10 digits from 0 to 9
• Binary number system has base 2 as it uses 2 digits which are 0 and 1
• Conversion of decimal and binary numbers

Guidance for lesson plans:

• Place value of decimal numbers
• Construct binary numbers system using above structure
• Discuss how to convert decimal numbers to binary numbers
• Discuss how to convert binary numbers to decimal numbers

Guidance for assessments and evaluations:

Give enough questions to get familiar with the decimal to binary and binary to decimal conversions

### Competency Level 1.2: Appreciates the working logic (binary concept) in computers

Number of Periods: 02 periods

Learning Outcomes:

• Represents positive decimal integers in binary
• Explains the method of displaying a character (Alpha numeric symbolic)/ image on the monitor using a bitmap

Contents:

• Method of data representation using 0 and 1
• Binary data flow among the computer components

Concepts and terms to be highlighted:

• Data representation
• Binary data Flow

Guidance for lesson plans:

• How computers see the world
• Bits and bytes and binary
• Representing data
• Representing text in Computer
• Representing images in Computer
• Bitmaps
• Representing colours in image
• Representing sound in computer

Guidance for assessments and evaluations:

By using a computer as a model explain how and at which point computer will do the binary conversion of input numbers. Can do this as part of a drama, and they can show how and which data traverse through one point to another.   # Lesson 01     # Lesson 01  