Close message Scootle has stopped supporting resources that use the Adobe Flash plug-in from 18 Dec 2020. Learning paths that include these resources will have alerts to notify teachers and students that one or more of the resources will be unavailable. Click here for more info.

Digital technologies / Year 9 and 10 / Digital Technologies Knowledge and Understanding

View on Australian Curriculum website Australian Curriculum, Assessment and Reporting Authority
Curriculum content descriptions

Analyse simple compression of data and how content data are separated from presentation (ACTDIK035)

Elaborations
  • explaining how simple compression schemes reduce the size of repetitive data, for example how run length encoding reduces the size of images
  • explaining the difference between lossy and lossless compression, for example the difference between JPEG and PNG images
  • explaining codecs for audio-visual compression, for example common codecs for video formats
  • generating a layout or report in a database or applying a style sheet to a web page
General capabilities
  • Critical and creative thinking Critical and creative thinking
  • ICT capability Information and Communication Technology (ICT) capability
ScOT terms

Data representation,  Computer files,  Data compression

Refine by resource type

Refine by year level


Refine by learning area


Refine by topic

Related topic * No suggestions

5 direct matches to ACTDIK035 | 15 other related resources
Showing the top 20 search results

Online

Data Representation

  • TLF-IDM021268

Find out about Data Representation. Use this topic from the Digital Technologies Hub to learn more, get ideas about how to teach about it, find out what other schools are doing and use the applications and games in the classroom.

View detailsView resource
Online

Connected via a network

  • TLF-IDM021749

This is a unit for Year 9 from the Scope and sequence resources from the DT Hub. The topic of digital systems is organised into four key elements. Use this flow of activities to plan and assess students against the relevant achievement standards. Students develop and understanding that digital systems must be robust and ...

View detailsView resource
Online

A matter of style

  • TLF-IDM021035

In this lesson sequence students using the Zen Garden website, reflect on criteria for effective design. They then explore the benefits of stylesheets in separating style and content and to learn to how use them.

View detailsView resource
Online

Seeing the big picture

  • TLF-IDM021037

This practical lesson sequence examines lossy and lossless techniques of data compression. Students perform comparisons of various compressions on a variety of images.

View detailsView resource
Online

Binary

  • TLF-IDM021247

Find out about the binary number system, a base-2 number system. Use this topic from the Digital Technologies Hub to learn more, get ideas about how to teach about it, find out what other schools are doing and use the applications and games in the classroom.

View detailsView resource
Video

Science Years 7–8 with Diana: Classification and constructing dichotomous keys

  • TLF-IDM025860

In this lesson, you will learn how and why scientists organise living and non-living things in a logical order. Diana will show you how to construct a dichotomous key for classification, and she’ll give you a chance to try it yourself at home.

View detailsView resource
Video

Is the supermoon really super?

  • TLF-IDM018088

Does the Moon ever appear bigger and brighter in the night sky? Find out as astronomer Tanya Hill from the Melbourne Planetarium explains why we sometimes see a 'supermoon'.

View detailsView resource
Video

Expeditions return home from 'New Holland'

  • TLF-IDM015969

Discover what happens when the expeditions of Matthew Flinders and Nicolas Baudin return home. Both explorers brought back detailed maps and specimens, including live kangaroos and emus, from 'New Holland'. How will each explorer be celebrated and remembered? Watch this clip to find out.

View detailsView resource
Video

The Aussie Accent: whaddya reckon, mate?

  • TLF-IDM015440

Imagine a world where everybody sounded exactly the same when they spoke. What might that be like? Are there 'good' and 'bad' ways to speak? In this clip, listen to the opinions of many people about whether Australians have a bad accent.

View detailsView resource
Video

Observing a wombat

  • TLF-IDM015491

Take a close look at two different types of wombats in this short clip. Don Spencer introduces a Common Wombat called Winifred, then shows us a Hairy-nosed Wombat foraging in the desert.

View detailsView resource
Video

Observing a flying fox

  • TLF-IDM015495

Take a close look at the flying mammal called the flying fox, or fruit bat. Watch these furry flyers as they leave their roosts to find food. Discover how and why they climb trees. See how these animals fly like birds but are not birds.

View detailsView resource
Video

Friction: friend or foe?

  • TLF-IDM017940

What part does the force of friction play in our everyday lives? Friction can be an advantage (friend) or a problem (foe). Join interviewer Doug Traction and professors Static, Slide, Rolling and Fluid at the National Tribology Research Centre as they have forceful fun investigating friction. This video won a prize in the ...

View detailsView resource
Video

Guide dog puppy in training

  • TLF-IDM017929

Meet Ella and the puppy she is helping to train as a guide dog. Find out what it takes to teach Dusty what he needs to know for a very important job.

View detailsView resource
Video

Guinea pig superstar

  • TLF-IDM017932

Meet Larissa and her guinea pig called 'Superstar'. Learn how Larissa cares for her guinea pig pets and what her dream is. Find out what makes Superstar a superstar pet.

View detailsView resource
Video

Strawberry milkshake warrior princess

  • TLF-IDM018739

Super heroes have amazing powers. To avert disaster we need a super hero who has intelligence, strength and speed. Which super hero has the right super units of each super power? Compare the super hero bar graphs. Will it be Mega Muscle Man, Atomic Angel, Keyboard Kid or some other super hero? Watch the clip to find out?

View detailsView resource
Video

Create your own card game

  • TLF-IDM021133

Grab a deck of cards and a bunch of friends and create your own card game. What sort of rules will you decide on? Get a pen and some paper out and brainstorm some possibilities. You might decide on something like 'If I draw a red card, I get a point' and 'If I draw a black card, you get a point.' What other rules can you ...

View detailsView resource
Video

Red cabbage pH experiment

  • TLF-IDM015755

It might sound 'un-sciencey', and have a bad smell, but red cabbage is actually very useful for testing the pH of liquids. Added to well-known liquids like lemonade or vinegar, red cabbage juice changes to 'pretty colours'. In this clip, Surfing Scientist Ruben Meerman explains the colour changes and how red cabbage juice ...

View detailsView resource
Video

'The Great Gatsby' and Baz's blockbuster

  • TLF-IDM017804

Have you ever been drawn into one of those arguments about which is better: the film or the book? In this clip, explore some responses to Baz Luhrmann's film adaptation of 'The Great Gatsby' and discover some of the factors that influence people's evaluations. It would be boring if we all had the same opinions, but have ...

View detailsView resource
Video

Lessons from Cyclone Yasi help future planning

  • TLF-IDM017489

Cyclone Yasi tore through Queensland's Cassowary Coast in 2011. As the largest cyclone to hit the region, it left towns like Tully and Mission Beach with a massive reconstruction task. Recently, the focus of local communities has turned to reducing their vulnerability to future cyclone events. This clip looks at the lessons ...

View detailsView resource
Video

Tassie be dammed: opening the Meander Dam

  • TLF-IDM017256

In response to prolonged periods of drought, the Tasmanian Government embarked on a plan to 'drought-proof' Tasmania. Listen to the reasons that politicians and some public officials give for building more dams. This clip features the opening of the Meander Dam in 2008 in the state's north. Hear also from farmers who have ...

View detailsView resource