Comparing bitmap and vector graphics
I can compare vector and bitmap images and consider which image type best suits which situation.
Comparing bitmap and vector graphics
I can compare vector and bitmap images and consider which image type best suits which situation.
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Lesson details
Key learning points
- Vector images are made from shapes and paths so they stay sharp when resized.
- This makes them good for logos or icons which need to be presented in different sizes.
- Bitmap images are made from pixels. They can lose quality when resized and are better for photos and detailed pictures.
Keywords
Bitmap - images that are made from pixels
Pixel - a dot of colour that, when combined with others, creates a bitmap or raster image
Common misconception
Vector images are better than bitmap images in every situation.
Vector and bitmap images are suited to different tasks. Vectors are best for simple, scalable designs like logos, while bitmaps are better for detailed images like photos.
To help you plan your year 8 computing lesson on: Comparing bitmap and vector graphics, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 8 computing lesson on: Comparing bitmap and vector graphics, 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.
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The assessment exit quiz will test your pupils' understanding of the key learning points.
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Explore more key stage 3 computing lessons from the Developing vector graphics unit, dive into the full secondary computing curriculum, or learn more about lesson planning.
Equipment
Rubric to evaluate vector graphic
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.What does SVG stand for?
Q2.How does an SVG file store an image?
Q3.What can you change in SVG markup to move a shape?
Q4.Put these actions in order when editing an SVG image:
Q5.Match each keyword to its description:
Code that holds details of vector graphics
Ability to change size without losing quality
A graphic that can be resized easily
Where a shape appears on the canvas
Q6.What kind of details can be found in SVG markup for each shape?
Assessment exit quiz
6 Questions
Q1.What are vector images made from?
Q2.Which type of image is best for a company logo that needs to be shown in different sizes?
Q3.What are bitmap images made from?
Q4.Which type of image is best for a detailed photograph?
Q5.Match the image type to its best use:
Best for simple, scalable designs
Best for detailed pictures
An example of a bitmap image
An example of a vector image