Binary+1

=Maths in Computing=

Binary Hexadecimal Catch Up

In this lesson you will learn how computers represent words and numbers using just two numbers. You will learn to convert numbers into binary and how the computer sees binary digits as letters.

REMEMBER TO LOGON TO GOOGLE CLASSROOM!



Starter (10 minutes)
You have each been given a number.

If your number is between 2 and 1024 arrange yourselves in numerical order from the door around the room.......

If you have a 1 or 0 move to the middle and form two groups....

What can you tell me about the number range? Lets convert some numbers to the binary system by moving our 1's and 0's to the correct places.

Think about a few of the numbers 8, 16, 32, 64 - can you think of any digital communication devices that use these numbers...

How about here

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Keywords (5 mins)
Create a keywords spreadsheet in google drive Name it Computing Maths Keywords Add the keywords below

**Activity (10 minutes)**
Play the Cisco Binary game So now you can convert numbers to binary code. Well done!

Task (20 minutes)
Computers understand binary code rather than English (think about it - a computer in China wouldn't be any use if it only understood English!)

Each binary digit is called a **bit** 0 are both **bits**
 * 1**

A single bit does not give the computer much information - so the computer uses chunks of 8 bits called **bytes**. are all **bytes**
 * 01111111**
 * 11111111**
 * 00000001**
 * 10101010**

The computer is programmed to recognise each byte as a different piece of information - the alphabet is programmed as a series of numbers - when you press a key on your keyboard the computer receives a byte of information which it uses to display the correct letter on the screen.

Plenary (5 mins)
Does this make any sense?