Data Representation | Grok Academy
Recognise patterns in data and make generalisations from those patterns.
Students notice patterns in data and make simple generalisations (e.g. organise objects by colour or size) and predictions (e.g. how the pattern continues).
Represent data using symbols
Express data (including ideas, objects, actions) using pictures and symbols.
Students use a picture or symbol to represent an idea, but know the picture is not the data itself (e.g. the Australian Aboriginal flag represents the people, the land, and the sun).
The same data is represented differently depending on its purpose.
Students explain how the same data can be represented in different ways (e.g. five vs 5 vs V vs |||| vs cinque) and why some are better than others in certain contexts (e.g. 5 is the best representation for calculation).
Whole number representation
All data can be represented as whole numbers in digital systems.
Students represent data using whole numbers (e.g. converting letters in a message to numbers using their position in the alphabet) and recognise this is how digital systems represent data.
Data can be compressed by removing redundancy without loss of information.
Students use an algorithm to identify patterns in data (e.g. repeated pixels in an image) and represent them in a compressed way (e.g. run-length encoding).
The content descriptions do not explicitly address Data types in band F-2.
Data can be represented in many ways.
Students describe different types of data (e.g. numbers, letters, pictures) and how they can be used.
Students explain how the data type used to represent data (e.g. number, string) changes the operations you can perform on it (e.g. adding numbers performs addition, adding strings joins them).
A document can be described by its content and how it is presented.
Students represent documents by separating content and presentation (e.g. HTML and CSS) and explain why this separation is important.