User:Elina Real Teaching Lesson Plan 2

Subject: Computer Science Unit:12 Class: 7 Topic:Octal and Hexadecimal number system Time:45 min Period: 3rd No of students:25 School:Adarsha Secondary school Specific Objectives: At the end of this class,Student will be able to: Understand the concept of octal and hexadecimal number system; Understand the steps of converting octal to hexadecimal and hexadecimal to octal number system; solve the conversion between hexadecimal to octal and octal to hexadecimal number system. Teaching Material: white board, dustor and marker; Laptop and Projector. Introduction: Begin by asking a question about Octal and hexadecimal number system. Encourage them to share their thought. Explain the steps of converting octal into hexadecimal and hexadecimal into octal number system.

Types: Binary Number System Decimal Number Systen Octal Number System Hexadecimal Number System

Octal Number System: Octal number system has only eight digit from 0 to 7. Every number (value) represents with 0,1,2,3,4,5,,6,7 in the number system. The base of octal number system is 8 ,because it has only 8 digits.

Hexadecimal Number System: Hexadecimal number system has 16 alphanumeric value from 0 to 9 and A to F. Every number (value) represents with 0,1,2,3,4,5,6,7,8,9,,A,B,C,D,E and F in this number system. The base of hexadecimal number system is 16, because it has 16 alphanumeric value. Here A is 10 , B is 11, C is 12 , D is 13 ,E is 14 and F is 15.

Octal to decimal conversion: Explain the process of converting an octal number to its binary equivalent using a step-by-step method. write a each step of conversion process in whiteboard and provides basic example. Example No 1: Example No 2:

Hexadecimal to octal Conversion: Explain how to convert a hexadecimal number to its binary equivalent and then to octal. Work through examples and problems on the board, students should involve in this process. Example 1: Example 2: Class room activity: Asign a task an Allow students to work individually or in pairs to solve these problems. Task 1: Task 2: Task 3: Encourage to the student to ask the question if they have any problem in any step. Conclusion: Summarize a key points about today topics; Encourage a studnet to ask a questions;

Assessment: Convert the following number according to the given instruction: (240)10 into octal number (540)8 into hexadecimal number (ABC)16 into octal number (1BC)16 into octal number