Introduction to the concept of abstraction, fundamental to Computer Science

1. What are these paintings about?

2. What are these photos of?

3. How did you do that?
 Cats: You ignored, you removed the
unnecessary detail.
 Dogs: You identified the patterns,
the things that all the photos had in
common.
 We call these two processes
‘Abstraction’

4. Working in your groups
 Make a puzzle, using images from the
internet – that require abstraction to
solve.
 Make the puzzle like the group of
pictures that you’ve just seen, but
make it harder to work out what the
subject is.