Data Representation - Hexadecimal

Lesson Objectives

 - understand the term Hexadecimal
 - be able to convert between binary, decimal and hexadecimal

Starter

 

1. Do you know what #FFFFFF means in computing?
2. What about #000000?
3. Which of these is easier to remember: 01011011 or 5B?

Like ASCII, Hexadecimal is another Character Set that you should be familiar with. It was 

Main

Red Task:

Read through the following and then try to explaining it to a friend:

Orange Task:
1a. On paper, copy the following Hex numbers then show your working out as you convert to Binary

1b. Similarly, copy the following Decimal numbers then show your working out as you convert to Hex

2a. Open the email I have sent you containing an Excel file called Hexadecimal Activity OR download it HERE

2b. Insert a snipping of your completed Hexadecimal Activity on your blog (to finish for hwk if not completed in class)

Green Task

 Add a post to your blog with the title Hexadecimal. Use text. images, video or a combination of all 3 to explain what you understand by the term Hexadecimal. You might want to include and explain this image:

Plenary

Test Yourself
Have a go at the Introduction to Binary test HERE
Have a go at the Binary test HERE
Have a go at the Hexadecimal test HERE


Useful Websites
Cambridge GCSE Computing
http://www.color-hex.com/
Teach-ICT
Binary Translator
Hex Colour Codes
Computing Academy