Block Coding

What does a spiral program look like?

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What would happen if you changed this block to 0 in the program?

• It would go faster

• It would go slower

• It would have no colours

• The circles would be very small

What would happen if you changed this block to 40 in the program?

• The circle will be smaller

• The circle will be larger

• There will be 40 circles

• The speed will be slower

What shape will Program A create?

• square

• triangle

• circle

• spirals

What shape will Program B create?

• square

• triangle

• circle

• spirals

Spot it!

What is different between Program A and Program B?

Spot it AGAIN!

What is another thing that is different between

Program A and Program B?

Which program is better?

• Program A

• Program B

Why would Program B be better?

(2 reasons)

• Saves time

• Less chance of mistakes

• It will draw the shape faster

• It takes longer to make

• It uses more blocks

What does a a growing square program look like?

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