U1Ch1L2_Sending Binary Messages Purpose: Students will develop a device & a process to send a binary message across a classroom to their partners. Vocabulary: Computer Science is the study of information and information processes.

Journal:

• Go back 1 year in time. Write down everything you remember about Binary. (indv then partner).
• What is a Binary Question?
• What is it about computer hardware that allows it to only functioning in response Binary inputs? 

Challenge 1: Send a Binary
For the first challenge partners will get together and have 5 minutes to construct a Device and a Process out of any supplies they see in the class.  They will be using this device and process to respond to a simple binary message - (Partner B will be using the device to answer a Binary question sent from Partner A. It must be answered with: Yes or No, True or False, Either/Or.)- to your partner on the other side of the room.
You should try to make it fail-proof. Consider obstacles that might be thrown in your way.
Rules:

• After 5 minutes, partners will split to separate parts of the room. They must stay on their side. You may not walk to the other side of the room.
• Partner A will write a Binary Question on a card and hand it to me. I will pass it to the partner.
• Partner B will now answer the question using the device and process they constructed.
• No language. That means no writing or talking to communicate & No projectiles!
• Now Go onto the next question.
• The game ends when the first group has 5 questions answered correctly.

GO!
(Give students 5 minutes to put together their Device and a Process.)

Challenge 2: Four possible messages
Not all questions have only two possible answers. First, Write a question that has at least four possible answers. Second, invent a way to use your device to send an answer to a question that has 4 possible answers! Think about these things:

• Should you modify your Device?
• Should you use it in a different way - in other words, change the Process?
• Should you make a new device entirely?

You have 5 minutes…
GO!

Challenge 3: Eight possible messages!
What if you wanted to ask an even more complex question with at least 8 possible answers?
First, Write a question that has at least eight possible answers. Second, invent a way to use your device to send an answer to a question that has 8 possible answers!

You have 5 minutes…
GO!

Journal: With Partner

• Did you refine your protocol at all during the 3 Challenges?