9.2.1 Binary Numbers

Binary numbers are the way computers store all data. Up until now you have probably used the numbers 0-9, these are called decimal. base 10 or denary numbers. In binary, there are only two numbers: 0 and 1. Each digit is called a "bit." You can think of each bit as a light switch. If it's off (0), there's no light, and if it's on (1), the light is on.

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LEARN THE FUNDAMENTALS OF BINARY

Watch one of the following videos to teach you how to convert binary numbers into

Task 1.1

Introduction to Binary

Use the CS Field Guide Binary Card Simulator to help you learn.

Click on the document and make a copy

Y9CS _ 1.1 Binary Numbers - Introduction to Binary

Task 1.2

Binary Game

Reinforcing learning through games - click the image.

Task 1.3

Quick Binary Check

Complete this Quizizz about binary codes. You can use the Binary Card Simulator to help you.

APPLY YOUR KNOWLEDGE

Task 1.4

Secret Messages

Binary numbers can also store other types of information.

Click on the document and make a copy

Y9CS _ 1.4 Binary Numbers - Sending Secret Messages

Task 1.5

Create your own message

You are now going to make your own message using UTF-8 binary code.

Make a copy of this slideshow and write your own message using images that represent 0 and 1. You may want to use two different emojis.

Y9CS _ 1.5 Binary Numbers - Binary Message Poster

Based on the Write Your Name In Binary Code

by Ariel Zych, on August 26, 2015

BINARY ASSESSMENT

Complete the EoT Binary

You can use the Binary Cards to help you

NZ CURRICULUM

Digital Technologies | Progress Outcomes

COMPUTATIONAL THINKING FOR DIGITAL TECHNOLOGIES

At the end of this topic students will have had the opportunity to cover;

understand that digital devices store data using just two states represented by binary digits (bits) PO3
understand that digital devices represent data with binary digits and can detect errors in data storage and transmission PO4
recognise that computers need to search and sort large amounts of data PO4
understand how computers store more complex types of data using binary digits PO5

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