1. Vocabulary
Prototype: A preliminary sketch of an idea or model for something new. It’s the original drawing from which something real might be built or created.
Binary - A way of representing information using only two options.
Bit - A contraction of "Binary Digit". A bit is the single unit of information in a computer, typically represented as a 0 or 1.

2. U2L2 Sending Binary Messages
CS Principles
U2L2 Sending Binary Messages

3. Objective
SWBAT:
Create a device for sending a single bit of information - state A or state B - over a distance.
Analyze the possibilities and limitations that arise when sending binary messages.
Explain or demonstrate how to use a binary message sending device to send messages that have more than two states.

4. Vocabulary
Binary - A way of representing information using only two options.
Bit - A contraction of "Binary Digit". A bit is the single unit of information in a computer, typically represented as a 0 or 1.

5. INFORMATION!
Prompt: 
What is your personal definition of “information?” What other words come to mind when you hear the word: “information”?
Take a minute to write it down.

6. Binary Messages
There are many ways we can think about the word “information,” but one possible definition we’ll explore today is that information is the answer to a question.
Perhaps the simplest question one can ask is what we’ll call a binary question, or a question to which there are only two possible answers.
For example, the question “Do we have a quiz today?” is a binary question, as there are only two possible responses, “yes” and “no.” Typically we think of binary questions as ones that can be answered “yes/no,” “true/false,” etc.
Many either/or type questions have binary responses as well, such as in “Which do you prefer: Coke or Pepsi?” or “Country music or hip hop?”
The information in this response we’ll call a binary message, or a message that can only have one of two possible values.

7. Sending Binary Messages
Open the U2L2 Activity Guide on Code.org
Form groups of 2. (there may be 1 group of 3)
 Imagine that you and your friend have not been able to communicate for the entire summer, and you have a chance to ask her one binary question that she will answer. What binary question do you want to ask?

8. Challenge 1
5 minutes! GO!

9. Challenge 2
5 minutes! GO!

10. Challenge 3
5 minutes! GO!

11. Challenge 4
5 minutes! GO!