Binary Code: The Language of Computers!

Mrs. NamendorfGrade 4 ESLTechnology Lesson

Binary Code: The Language of Computers!Content Objectives:Students will be able toUse Binary code to write a message. Change base 10 system numbers to Binary numbersLanguage Objectives:Students will be able toDefine Binary codeDiscuss Binary code with a partnerRead aloud their written message Standards:WIDA Standards:WIDA 4-5 Standard 3: Mathematics Language.

NJCCCS Technology:8.2.4.G.2 Explain the functions of a system and subsystems.

What does Binary mean?Bi--naryMeans 2

For example Bi-cycle (it has 2 wheels) Bi-noculars (it has two lensesThe dictionary tells us that nary means not one.

Therefore Binary means two, not 1What is Binary?Binary isThe language the computers useA number system

The binary system uses only two symbols, a 0 and a 101 0 = off 1 = on

BitThe Binary Code assigns one of two numbers to each state a switch on a memory chip happens to be in. If the switch is ON, it is assigned a 1. If it is OFF, it is assigned a 0. Each 1 or 0 is called a bit.

You can only have the numbers 0 or 1If you had a number 1, that would meanIf you had a number 0, that would meanIt is onIt is offByteEvery letter, every number, every color, everything you type on your keyboard is assigned a series of 1s and 0s by your computer. Each series of bits is called a byte.

How to count in Binary? 23 8 22 4 21 2 20 1 Decimal CountDecimal Value00000+0+0+0000010+0+0+1100100+0+2+0200110+0+2+1301000+4+0+0401010+4+0+1501100+4+2+0601110+4+2+1710008+0+0+0810018+0+0+1910108+0+2+01010118+0+2+11111008+4+0+012Review Time!What is the language of computers called? Binary CodeAnswersWhat are the two numbers in Binary Code?What does 0 mean?What does 1 mean?0 and 1OFFONHow does your computer use this?If you type an a on your keyboard, the computer assigns it the series 00001. A b is 00010. A j is 01010 and so on through the whole alphabet.

I will now give out a handout to help express letters on a keyboard to the computer.AssignmentFirst, try to write your name in Binary Code.Show your partner and see if they can follow how you wrote your name.If they can, you are ready for part 2.Next, work with your partner to write a short message about binary code.For exampleBinary is so much fun00010 01001 01110 00001 10010 1100101001 1001110011 0111101101 10101 00011 0100000110 10101 01110

Please put one word per line!

ReferencesBinary pictures taken from Google search engine on 6/5/2012 from following sites:Picture on slide 3 was retrieved from http://austintoft.blogspot.com Picture on slide 4 was retrieved from http://www.123rf.com/photo_8882852_3d-switch-on-and-off.htmlPicture on slide 7 was retrieved from http://uowresearch.wordpress.com Picture on slide 9 was retrieved from http://dreamstime.com

Binary Simplified Code sheet and Counting Guide taken modified from following sourceBinary code. (2011, December 20). Retrieved from http://www.micron.com/~/media/Documents/General/K12/binary_coding.pdf