Shapes on the Screen
Circles and squares are shape data that a computer draws on screen.
How computers do this
Shape data like circles and squares is how computers draw icons and buttons on screen.
Class 1 to 2beginner10 min2 lessons1 interactive lab
By the end you will be able to
- Point at circle shape data on screen
- Point at square shape data on screen
- Match the target shape the computer shows
Finish first
Topic contents
Computer play 1 of 2
Round circle
Computer lab
Tap the matchTap the picture that looks like the big one.
Find this one
Circle
Grown-up note (read aloud)
A circle on screen is round like a ball seen from the front. The computer draws circle shape data with no corners.
- Circle shape data is round
- No corners in circle data
Computer play 2 of 2
Square corners
Grown-up note (read aloud)
A square on screen has four straight sides and four corners. The computer uses square shape data for buttons and windows.
- Four sides in square data
- Four corners on screen
Practice
Try at home
No answer key here on purpose: these are the questions worth thinking through before you move on. Open one and work it out.
0/2 attemptedPicture check
Tap your answer
Pick the picture that answers the question. A grown-up can read the words.
0/4
4 of 4 questions left.
Finished this topic?
0 of 2 lessons marked done. Marking the topic complete ticks the rest.