# Binary 9IST

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1. Word cloud
120 seconds
What is binary?
2. Slide
60 seconds
Understanding Binary
Binary is a way of representing information using only two symbols, usually 0 and 1. Binary is the language that computers use to communicate. Understanding binary can help you become a better programmer.
3. Slide
60 seconds
Binary
Binary is a base-2 number system that uses two different symbols, usually 0 and 1, to represent numerical values and perform mathematical operations.
Each digit in a binary number is called a bit, which is short for binary digit.
In computers, each binary digit is stored in a tiny electronic switch called a transistor, which can be either on or off.
4. Slide
60 seconds
Did you know?
The world's first computer programmer was a woman named Ada Lovelace. Binary code is used to program computers, mobile phones, and other digital devices. In binary code, each letter of the alphabet is represented by a unique combination of 8 digits.
5. Slide
60 seconds
6. Open question
300 seconds
What are the similarities and differences between binary and decimal coding systems?
7. Slide
60 seconds
What is ASCII?
ASCII stands for American Standard Code for Information Interchange. It’s a set of codes used to represent characters (letters, numbers, symbols) on computers. It helps computers understand and communicate data in a consistent way. ASCII codes are used in HTML and CSS to add special characters to a website.
8. Drawings
450 seconds
Brain Break! Draw a goofy monster with three eyes, five legs, and polka dots all over its body.
9. Slide
60 seconds
Worked Examples
As a class, work through the following binary and decimal examples using the Binary Number Lines provided: 10 6. 26 111 7. 57 1010 8. 106 1010110 9. 255 11100101 10. 511
10. Slide
60 seconds
Activity
Complete the worksheet on google classroom individually. If needed, you can use the Binary Number Timeline.
11. Slide
60 seconds
Exit Ticket
12. Poll
60 seconds
What is the base of the binary number system?
• 10
• 2
• 16
13. Poll
60 seconds
What is the base of the decimal numbering system?
• 16
• 2
• 10
14. Poll
60 seconds
What does ASCII stand for?
• Artificial Supercomputer Computing Intelligence
• American Standard Code for Information Interchange
• Advanced System Configuration and Interface
• All Systems Control and Integration
15. Poll
60 seconds
What does a '0' represent in binary?
• Off or False
• On or True
16. Poll
60 seconds
How many bits are in a byte?
• 16
• 4
• 8
17. Poll
60 seconds
What is the decimal equivalent of binary number '10101'?
• 31
• 25
• 21
18. Open question
180 seconds
Work together in pairs: What is the binary equivalent of 230?
19. Personalised Feedback
240 seconds
How would you explain the concept of binary numbers to someone who has never heard of it before?