Isaac Lopez Integrated School

Information and Computer Technology

Date: January 09, 2008

I. Targets: At the end of the lesson, at least 75% of the students should be able to;

A. compute for the value of binary digit;

B. convert binary digits into decimal nos.;

C. sustain interest in converting binary to decimal nos;

II. Subject Matter:

A. Topic: Conversion of Binary nos. into Decimal nos.

B. Teaching Aids: Chalk, Board, PC

C. References:

Microsoft Encarta Encyclopedia

Introduction to Computer; Profeta M. .M., Yangco, et. Al. E.M. pp20-25

III. Learning Tasks:

A. Preparations:

Prayer and Checking of Attendance

B. Recall:

Which is bigger a bit or a byte?

C. Motivation:

How many types of numbers are involve in binary system? In Decimal

D. Activity:

1Discussion and demonstration on:

Conversion of binary numbers into decimal numbers.

Rule: Multiply the leftmost no. by 2 then add the product to the next digit. The sum is

again multiply by 2 and the resulting product is again added to the next digit. Repeat

up to the last digit.

1 1 0 1

1

X 2

2

+ 1

3

X 2

6

+ 0

6

X 2

12

+ 1

13

E. Application:

Discussion, demonstration and board work

F. Assessment:

Convert the following:

1. 110112 into decimal nos.

2. 1000012 into decimal nos.

3. 101010102 into decimal nos.

IV. Agreement:

1. Convert the following binary nos. into decimal nos.

a. 011011012

b. 11100112

c. 100110012

d. 101011102

2. Convert the following. Decimal nos. into binary numbers.

a. 10910

b. 20210

References:

Any Computer and Technology Textbooks.