{"id":28424,"date":"2025-03-10T14:00:14","date_gmt":"2025-03-10T14:00:14","guid":{"rendered":"https:\/\/www.orbeducation.com\/au\/?post_type=product&p=28424"},"modified":"2025-07-17T17:52:33","modified_gmt":"2025-07-17T17:52:33","slug":"data-and-encoding-2025-yrs-7-8","status":"publish","type":"product","link":"https:\/\/www.orbeducation.com\/au\/product\/data-and-encoding-2025-yrs-7-8\/","title":{"rendered":"Data and Encoding 2025 (Yrs 7-8)"},"content":{"rendered":"

Curriculum Information<\/strong><\/h3>\n

0. Cover, Checklist<\/strong><\/p>\n

1. Wordlist<\/strong><\/p>\n

2. Data in our Lives<\/strong>
\nNSW Comp Tech (2024) CT-Data: \u00a4 Differentiate between data and information:
\nNSW Comp Tech (2024) CT-Data: \u00a4 Explore the applications of small and big datasets: <\/p>\n

3. Basic Data Tasks<\/strong>
\nAC V9.0 (7-8): \u00b7 acquire, store and validate data from a range of sources using software, including spreadsheets and databases (AC9TDI8P01)
\nNSW DT(Tech Mand): TM: \u00b7 collect and access data from a range of sources (ACTDIP025)
\nAC V9.0 (7-8): Collect and transform many types of data from a wide range of sources.
\nNSW DT(Tech Mand): TM: LS – \u00b7 collect data from a range of sources, eg experiments, surveys, public data sets
\nNSW DT(Tech Mand): TM: \u2013 using sensors to collect temperature data<\/p>\n

4. Searching the Web<\/strong>
\nAC V9.0 (Recap 5-6): – locating content through search engines and in documents by revising queries and using required search terms, for example reviewing search results and modifying search terms to make the query more accurate
\nAC V9.0 (7-8): \u00b7 select and use a range of digital tools efficiently, including unfamiliar features, to create, locate and communicate content, consistently applying common conventions (AC9TDI8P11)
\nAC V9.0 (7-8): – locating relevant content from multiple sources, exploring advanced search functions and targeted criteria, for example using specific filters such as date range, image size, file type and usage\u202flicence<\/p>\n

5. Data Authenticity<\/strong>
\nAC V9.0 (7-8): – judging how meaningful data is to a question, its correctness and how up to date the data is, for example Does age affect the chance of cyclist injury?, Are self-reported accidents reliable? and Is the data before cycleways existed relevant?
\nNSW DT(Tech Mand): TM: \u00b7 evaluate the authenticity, accuracy and timeliness of data (ACTDIP025) <\/p>\n

6. Data Processing<\/strong>
\nAC V9.0 (7-8): \u00b7 model and query the attributes of objects and events using structured data (AC9TDI8P03)
\nNSW DT(Tech Mand): TM: \u2013 summarising or aggregating data to draw conclusions
\nAC V9.0 (7-8): – storing acquired data using specialised and general software appropriate for how it will be accessed and manipulated, for example a spreadsheet for visualisation or a pre-defined database for filtering and queries
\nAC V9.0 (7-8): – acquiring, storing and validating data from a reputable source, such as the Australian Bureau of Statistics, to analyse the geographic distribution of First Nations Australians, with the aim to highlight past and emerging trends
\nNSW DT(Tech Mand): TM: \u2013 downloading public datasets from the internet<\/p>\n

7. Surveys<\/strong>
\nAC V9.0 (7-8): – acquiring data to answer questions for their own investigations, for example answering Does the canteen sell the right food? by designing a survey to collect food preferences data and accessing canteen sales data<\/p>\n

8. Binary Systems<\/strong>
\nAC V9.0 (7-8): \u00b7 explain how and why digital systems represent integers in binary (AC9TDI8K04)
\nNSW DT(Tech Mand): TM: \u00b7 explain how and why whole numbers are represented in binary in digital systems (ACTDIK024) ST
\nAC V9.0 (7-8): – explaining how circuits can perform binary operations represented as on\/off states, for example showing how circuits with 2 switches can represent AND or OR gates<\/p>\n

9. Binary Counting<\/strong>
\nAC V9.0 (Recap 5-6): Process data and show how digital systems represent data.
\nAC V9.0 (Recap 5-6): Think in a more abstract way, exploring how on and off states and whole numbers can be used to represent data.
\nAC V9.0 (Recap 5-6): \u00b7 explain how digital systems represent all data using numbers (AC9TDI6K03)
\nAC V9.0 (Recap 5-6): \u00b7 explore how data can be represented by off and on states (zeros and ones in binary) (AC9TDI6K04)
\nAC V9.0 (Recap 5-6): – demonstrating that an on\/off state in a circuit can represent the digits one and zero, and this is how digital systems represent data
\nAC V9.0 (Recap 5-6): – recognising how the answer to a yes\/no question can be represented using on\/off states, for example switching a light on or off in a circuit or a long or short dash (beep) in Morse code
\nAC V9.0 (7-8): – explaining how whole numbers can be represented in binary, for example counting in binary from 0\u202fto 31\u2026<\/p>\n

10. Bits and Bytes<\/strong>
\nAC V9.0 (7-8): – explaining how whole numbers can be represented in binary… recognising that one byte = 8 bits, which can represent from 0 to 255
\nAC V9.0 (7-8): – explaining how digital systems represent data in binary, for example by converting a character to its Unicode value, then converting that value into binary
\nAC V9.0 (7-8): Develop a deeper understanding of abstraction by explaining how and why digital systems represent data as whole numbers, which are then represented in binary.<\/p>\n

11. Text Characters<\/strong>
\nAC V9.0 (Recap 5-6): – representing data using whole numbers and recognising this is how digital systems represent data, for example converting letters in a message to numbers using their position in the\u202falphabet
\nNSW DT(Tech Mand): TM: LS – \u00b7 represent data using a range of software, eg numbers, characters
\nAC V9.0 (7-8): \u00b7 investigate how digital systems represent text, image and audio data using integers (AC9TDI8K03)
\nNSW DT(Tech Mand): TM: \u00b7 investigate how digital systems represent text, image and audio with whole numbers, for example: (ACTDIK024)
\nAC V9.0 (7-8): – explaining how digital systems represent text as a sequence of individual characters numbered using the Unicode character set, for example upper-case and lower-case letters, punctuation and\u202femoji
\nNSW DT(Tech Mand): TM: \u2013 representing letters, digits, symbols and emojis in Unicode<\/p>\n

12. Colours<\/strong>
\nAC V9.0 (7-8): – explaining how digital systems represent bitmap images (for example PNG and JPEG) as the colour of each pixel in separate red, green and blue (RGB) channels ranging from 0 to 255,
\nNSW DT(Tech Mand): \u2013 representing colours and pixels as amounts of red, green, blue and alpha<\/p>\n

13. Bitmap Images<\/strong>
\nAC V9.0 (7-8): – explaining how digital systems represent bitmap images (for example PNG and JPEG)
\nNSW DT(Tech Mand): TM: \u2013 representing colours and pixels as amounts of red, green, blue and alpha<\/p>\n

14. Vector Graphics<\/strong>
\nAC V9.0 (7-8): – … represent Scalable Vector graphics (SVG) using the geometry of lines and shapes<\/p>\n

15. Audio Encoding<\/strong>
\nAC V9.0 (7-8): – explaining how digital systems represent audio using whole numbers for the amplitude of the soundwave at a given sampling rate, for example -32,768 to 32,767 for 16-bit audio at 44,100 Hz
\nNSW DT(Tech Mand): TM: \u2013 representing audio signals using sampling and quantisation
\nAC V9.0 (7-8): – investigating how a digital system converts audio data to integers as it records, stores and outputs sound<\/p>\n

16. Image Encoding<\/strong><\/p>\n

By Curriculum<\/strong><\/h3>\n

Australian Curriculum V9.0 (2024)<\/strong>
\nAC V9.0 (7-8): – … represent Scalable Vector graphics (SVG) using the geometry of lines and shapes
\nAC V9.0 (7-8): – acquiring data to answer questions for their own investigations, for example answering Does the canteen sell the right food? by designing a survey to collect food preferences data and accessing canteen sales data
\nAC V9.0 (7-8): – acquiring, storing and validating data from a reputable source, such as the Australian Bureau of Statistics, to analyse the geographic distribution of First Nations Australians, with the aim to highlight past and emerging trends
\nAC V9.0 (7-8): – explaining how circuits can perform binary operations represented as on\/off states, for example showing how circuits with 2 switches can represent AND or OR gates
\nAC V9.0 (7-8): – explaining how digital systems represent audio using whole numbers for the amplitude of the soundwave at a given sampling rate, for example -32,768 to 32,767 for 16-bit audio at 44,100 Hz
\nAC V9.0 (7-8): – explaining how digital systems represent bitmap images (for example PNG and JPEG)
\nAC V9.0 (7-8): – explaining how digital systems represent bitmap images (for example PNG and JPEG) as the colour of each pixel in separate red, green and blue (RGB) channels ranging from 0 to 255,
\nAC V9.0 (7-8): – explaining how digital systems represent data in binary, for example by converting a character to its Unicode value, then converting that value into binary
\nAC V9.0 (7-8): – explaining how digital systems represent text as a sequence of individual characters numbered using the Unicode character set, for example upper-case and lower-case letters, punctuation and\u202femoji
\nAC V9.0 (7-8): – explaining how whole numbers can be represented in binary, for example counting in binary from 0\u202fto 31\u2026
\nAC V9.0 (7-8): – explaining how whole numbers can be represented in binary… recognising that one byte = 8 bits, which can represent from 0 to 255
\nAC V9.0 (7-8): – investigating how a digital system converts audio data to integers as it records, stores and outputs sound
\nAC V9.0 (7-8): – judging how meaningful data is to a question, its correctness and how up to date the data is, for example Does age affect the chance of cyclist injury?, Are self-reported accidents reliable? and Is the data before cycleways existed relevant?
\nAC V9.0 (7-8): – locating relevant content from multiple sources, exploring advanced search functions and targeted criteria, for example using specific filters such as date range, image size, file type and usage\u202flicence
\nAC V9.0 (7-8): – storing acquired data using specialised and general software appropriate for how it will be accessed and manipulated, for example a spreadsheet for visualisation or a pre-defined database for filtering and queries
\nAC V9.0 (7-8): \u00b7 acquire, store and validate data from a range of sources using software, including spreadsheets and databases (AC9TDI8P01)
\nAC V9.0 (7-8): \u00b7 explain how and why digital systems represent integers in binary (AC9TDI8K04)
\nAC V9.0 (7-8): \u00b7 investigate how digital systems represent text, image and audio data using integers (AC9TDI8K03)
\nAC V9.0 (7-8): \u00b7 model and query the attributes of objects and events using structured data (AC9TDI8P03)
\nAC V9.0 (7-8): \u00b7 select and use a range of digital tools efficiently, including unfamiliar features, to create, locate and communicate content, consistently applying common conventions (AC9TDI8P11)
\nAC V9.0 (7-8): Collect and transform many types of data from a wide range of sources.
\nAC V9.0 (7-8): Develop a deeper understanding of abstraction by explaining how and why digital systems represent data as whole numbers, which are then represented in binary.
\nAC V9.0 (Recap 5-6): – demonstrating that an on\/off state in a circuit can represent the digits one and zero, and this is how digital systems represent data
\nAC V9.0 (Recap 5-6): – locating content through search engines and in documents by revising queries and using required search terms, for example reviewing search results and modifying search terms to make the query more accurate
\nAC V9.0 (Recap 5-6): – recognising how the answer to a yes\/no question can be represented using on\/off states, for example switching a light on or off in a circuit or a long or short dash (beep) in Morse code
\nAC V9.0 (Recap 5-6): – representing data using whole numbers and recognising this is how digital systems represent data, for example converting letters in a message to numbers using their position in the\u202falphabet
\nAC V9.0 (Recap 5-6): Process data and show how digital systems represent data.
\nAC V9.0 (Recap 5-6): Think in a more abstract way, exploring how on and off states and whole numbers can be used to represent data.
\nAC V9.0 (Recap 5-6): \u00b7 explain how digital systems represent all data using numbers (AC9TDI6K03)
\nAC V9.0 (Recap 5-6): \u00b7 explore how data can be represented by off and on states (zeros and ones in binary) (AC9TDI6K04)<\/p>\n

NSW Computing Technology (2024)<\/strong>
\nNSW Comp Tech (2024) CT-Data: \u00a4 Differentiate between data and information:
\nNSW Comp Tech (2024) CT-Data: \u00a4 Explore the applications of small and big datasets: <\/p>\n

NSW Technology Mandatory<\/strong>
\nNSW DT(Tech Mand): TM: \u2013 representing colours and pixels as amounts of red, green, blue and alpha
\nNSW DT(Tech Mand): TM: \u2013 downloading public datasets from the internet
\nNSW DT(Tech Mand): TM: \u2013 representing audio signals using sampling and quantisation
\nNSW DT(Tech Mand): TM: \u2013 representing colours and pixels as amounts of red, green, blue and alpha
\nNSW DT(Tech Mand): TM: \u2013 representing letters, digits, symbols and emojis in Unicode
\nNSW DT(Tech Mand): TM: \u2013 summarising or aggregating data to draw conclusions
\nNSW DT(Tech Mand): TM: \u2013 using sensors to collect temperature data
\nNSW DT(Tech Mand): TM: \u00b7 collect and access data from a range of sources (ACTDIP025)
\nNSW DT(Tech Mand): TM: \u00b7 evaluate the authenticity, accuracy and timeliness of data (ACTDIP025)
\nNSW DT(Tech Mand): TM: \u00b7 explain how and why whole numbers are represented in binary in digital systems (ACTDIK024) ST
\nNSW DT(Tech Mand): TM: \u00b7 investigate how digital systems represent text, image and audio with whole numbers, for example: (ACTDIK024)
\nNSW DT(Tech Mand): TM: LS – \u00b7 collect data from a range of sources, eg experiments, surveys, public data sets
\nNSW DT(Tech Mand): TM: LS – \u00b7 represent data using a range of software, eg numbers, characters<\/p>\n","protected":false},"excerpt":{"rendered":"

Help your students collect and process data, creating and presenting information in forms that are meaningful. We investigate reputable sources and learn to judge the precision and accuracy of data. We explore advanced search functions and targeted criteria. Students then select an investigation topic and gather quantitative data via a carefully designed survey.<\/p>\n

The second half of the resource concerns itself with the encoding of data, explaining how and why digital systems represent integers in binary. Students look at how circuits perform binary operations with switches representing AND or OR gates. They study how decimal numbers can be represented in binary and recognise that one byte is a set of 8 bits. They investigate how digital systems represent text, image and audio data using integers, exploring the Unicode character set, RGB colours, bitmap images with pixels and vector graphics using the geometry of lines and shapes. They explain how digital systems represent audio using whole numbers for the amplitude of the soundwave at a given sampling rate, building a solid understanding of terms such as 16-bit audio and sampling frequency.<\/p>\n

The targeted curriculum outcomes were gathered from the new Australian Curriculum V9.0 as well as the new NSW Computing Technology course (2024). The relevant curriculum statements are listed below.<\/p>\n

Files: Cover, Checklist, Wordlist, Data in our Lives, Basic Data Tasks, Searching the Web, Data Authenticity, Data Processing, Surveys, Binary Systems, Binary Counting, Bits and Bytes, Text Characters, Colours, Bitmap Images, Vector Graphics, Audio Encoding, Image Encoding<\/p>\n

Includes all answer sheets and solution spreadsheets. The premium packages include the fixed PDF files as well as the editable Word versions (great for teacher editing or student answers). 89PP + 4 spreadsheets<\/em><\/p>\n

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