Artist Zone

Objective:

     Get your partner to draw the same picture as you


Materials Required:

   - Paper/Pens


Setup:

   - Everyone draw a simple picture on your paper, but don't show anyone!



Algorithms

Computers use sequences of instruction called algorithms to complete tasks. The sequence of events is like step by step instructions on how to reach its goal. 

On your paper, write step by step instructions on how to draw your picture (Think draw a tree here, draw a car here, and be specific!)

Next have someone else (a friend, a troop leader, etc) follow your instructions to draw the picture. Make sure to follow these steps word for word, exactly like a computer would! Don't assume anything!

How well did your instructions work?

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Loops

Loops are ways that a computer can do steps multiple times in a row. If you want a character in a game to take 100 steps, you might write out the action to take a step 100 times. That's a lot of work. Instead, you could write it once and say do this 100 times. Thats a lot less work for you!

How can you make a better instructions using loops? When you ask someone to draw something, do you say draw a tree, draw another tree, draw another tree, or do you just say draw 3 trees? How can you do that using loops?

Rewrite your instructions to be more efficient using loops. Now have someone else try to draw the picture using these new instructions.

Did the pictures match? Were your instructions shorter than before?

Events

Things called events help a computer know when to do something. When you press a button on your keyboard, it types the letter you pressed. You pressing the button is an event because when that happens, this happens. Another example is the baking a cake. When the ingredients are done mixing, put the cake in the oven. When the oven is done, take the cake out.

How can you use events to make your instructions even better? Could you tell someone to stop drawing a line when they reach the end of the paper?

Rewrite your instructions using some of these events. Now have someone else try to draw the picture following these new instructions.

Did the pictures match? How short were you able to make your instructions?

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Not official requirements - supplemental material

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