Binary numbers

Computers today use digits to represent information - that's why they're called digital systems. The simplest and most common way to represent digits is the binary number system, with just two digits (usually written as 0 and 1). It is called binary because there are only two different digits used, or two states. This unit and lesson explores how the binary system works and why it’s important to understand how data is represented.

or jump straight to a lesson of the unit:

Ages 5 to 7 Programming challenges
In the teacher observations sections there may also be background notes on the big picture. There is no expectation that 5 to 7 year olds will need to know this, but if you are asked, you have the answer at your fingertips.
1 How binary digits work No
2 Reinforcing sequencing in binary number systems No
3 Codes for letters using binary representation for junior students No
Ages 8 to 10 Programming challenges
1 How binary digits work Yes
2 Reinforcing sequencing in binary number systems No
3 Codes for letters using binary representation No

Curriculum Integrations

Activity Curriculum Areas Prerequisite Lessons?
Binary Candles or Normal Candles on your Cake Literacy: Writing Yes
Whose cake is it? Literacy: Writing Yes
Binary Name Necklaces Art Yes
Binary Patterns Art Yes
Binary Tunes Performing Arts: Music Yes
Biographies and binary number system history Literacy: Reading Literacy: Writing No
Binary Art Art No

Resources

The following resources are used in Binary numbers lessons, and can be accessed here (and also on each lesson page).

Looking for more?

Click here for other resources