Metadata
Lesson details
Learning outcome
I can describe what metadata is and how it is used to provide data about images and sounds.
Key learning points
- Metadata is data that describes other data.
- Metadata provides extra information about the properties of an original artefact as textual data that can be searched.
- Image and sound file metadata provides a range of information that can be used in a variety of ways.
Keywords
Metadata - data used to describe other data
Common misconception
Metadata is only used when a user needs to know when a file was made or changed.
Metadata can be used in a variety of ways. For example, software can be designed to make use of metadata for effective cataloguing and providing extra information about the properites of a file being used.
Teacher tip
Use downloaded files to inspect the metadata of different files. Pupils could investigate the range of metadata that is included in all manner of files.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.What is the smallest element of an image?
Q2.What does colour depth represent?
Q3.What does the resolution of an image determine?
Q4.What is the process of converting data into binary called?
Q5.What term describes the number of samples taken per second in a sound file?
Q6.What happens when you increase the sample rate of a sound file?
Assessment exit quiz
6 Questions
Q1.Match the term to its description:
data that describes other data
the total number of pixels in an image
the number of samples taken per second
Q2.Match the term to its description:
textual metadata
the number of bits used to represent each pixel
a property of a sound file
Q3.Which of the following is an example of metadata in an image file?
Q4.What does metadata for a sound file include?
Q5.How can metadata be used?
Q6.What is a key benefit of metadata?
To help you plan your 10 computer science lesson on: Metadata, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 10 computer science lesson on: Metadata, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 4 computer science lessons from the Representation of text, images and sound unit, dive into the full secondary computer science curriculum, or learn more about lesson planning.