Programming Basics: Put Steps in Order

Follow a short list of drawing instructions.

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5 questions0m 0s

Learn the skill

Read one instruction at a time from top to bottom. In this picture, step 1 draws a circle, step 2 puts a dot inside it, and step 3 adds a line below it. You can point or describe instead of drawing.

Worked example

After step 1 there is just a circle. The dot is added in step 2. A computer follows the steps it is given; it does not know a missing step.

Step 1 draws a circle. Step 2 adds a dot inside the circle. Step 3 adds a line below. Each picture shows the complete drawing after that step.

Would you believe it?

Computer science can be explored without a computer. Paper, cards and puzzles can help learners practice giving instructions and reasoning about what happens next.

University of Canterbury: CS Unplugged

Question 1 What is step 1? Draw a circle Add the line below Put the dot inside

Question 2 Which step puts a dot inside the circle? Step 1 Step 3 Step 2

Question 3 What comes after adding the dot? Start at step 1 again Add a line below Erase the circle

Question 4 What is present after only step 1? A circle A circle with a dot and line Only a line

Question 5 What helps someone follow your plan? All steps mixed together Leaving out the first step Clear steps in order

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