CS Unplugged: Image Representation - Colour by Numbers
Use the Colour by Numbers offline activity to explore how a B&W image is made up of pixels, shown as black or white dots which are represented by either a 1 or 0. Using a 0 or 1 to represent a white or black square students create an image on a grid. They supply the coded message for someone else to recreate. Support your teaching and learning with video clips and other related resources.
Additional details
| Year band(s) | Foundation, 1-2, 3-4, 5-6, 7-8 |
|---|---|
| Format | Web page |
| Core and overarching concepts | Data representation |
| Australian Curriculum Digital Technologies code(s) |
AC9TDIFK02
Represent data as objects, pictures and symbols
AC9TDI2K02
Represent data as pictures, symbols, numbers and words
AC9TDI4K03
Recognise different types of data and explore how the same data can be represented differently depending on the purpose
AC9TDI6K04
Explore how data can be represented by off and on states (zeros and ones in binary)
AC9TDI8K03
Investigate how digital systems represent text, image and audio data using integers
AC9TDI8K04
Explain how and why digital systems represent integers in binary |
| Keywords | Data representation, Image Representation, Pixels, Binary |
| Organisation | University of Canterbury, New Zealand |
| Copyright | Creative Commons BY-NC-SA 4.0 |
Related resources
-
WS02 - Clean our school
Use this ACARA worksample to assess how Years 3-4 students process and represent data for different purposes as they use digital tools to create and share content.
-
WS03 - The most popular use of the play space
Use this ACARA worksample to assess how Years 1–2 students represent data as they use digital tools to collect data to answer a question and visualise the data using graphs or charts.
-
WS01 - Organising ideas: My school
Use this ACARA worksample to assess how Years 1–2 students represent data, use digital tools purposefully, and share content.
-
WS04 - Knowing numbers
Use this ACARA worksample to assess how Foundation students represent numbers in different ways using images, objects, and symbols.
-
WS03 - Numbers to 20
Use this ACARA worksample to assess how Foundation students demonstrate learning in data representation through counting, sequencing, and symbolising number.
-
WS02 - Sorting shapes and objects
Use this ACARA worksample to assess how Foundation students demonstrate learning in data representation sorting shapes.
-
WS04 - Animals percussion composition
Use this ACARA worksample to assess how Years 1–2 students represent and process data in different ways and follow basic algorithms involving a sequence of steps.
-
WS01 - Observations: Data is all around us
Use this ACARA worksample to assess how Foundation students demonstrate learning in digital systems and data representation.