1. Introduction: Computer programming
What is computer science?
What is an algorithm?
Why do we need computer science and algorithms?

2. Think-pair-share Define ”computer science”
Think Write down what you think computer science is. Who uses computer science.
Pair Share your definition with your neighbor. Come up with a common definition.
Share Share your common definition with the class.

3. Computer science https://www.youtube.com/watch?v=-xFJM3QQ3TE
A discipline that involves the understanding and design of computers and computational processes
Computer science is theoretical.  
Computer programming is practical
Process of designing, writing, testing, debugging, and maintaining the source code of computer programs

4. Areas of computer science
Major areas of Computer Science include:
1. Operating Systems--concerned with the development and structure of complex programs which facilitate man-machine communications.
2. Computational Science--the analysis of numerical methods for solving mathematical problems with a computer.
3. Programming Languages--the study of the design and properties of languages by which humans communicate with computers.
4. Architecture--the study and use of mathematical logic to design electronic circuits.
5. Intelligent Systems--concerned with means by which computers may perform tasks which might be characterized as "intelligent" if performed by humans.
6. Automata Theory--an abstract study of computers and their capabilities.
7. Information Storage and Retrieval--the study of methods for storing a vast amount of data in a computer and methods for searching and retrieving this data.
8. Software Engineering--the study of tools and techniques for software design, development, testing and maintenance.

5. Algorithm What is an algorithm?
Why might we use an algorithm in our daily lives?
An algorithm is a set of steps or instructions that someone could follow to complete a task. In this class we’re going to be thinking more about creating algorithms that a computer could follow, but for now let’s focus on creating algorithms for one another.

6. Activity
Create Your Arrangement: With a pen, draw a figure of variously sized rectangles (or squares).  make sure that the squares/rectangles are connected
Design Your Algorithm: As you draw think about the fundamental operations - the most basic set of commands - you would need in order to write out a list of instructions for another person to draw it the same way you did. Your instructions may only use words, so you cannot use pictures to help you.
Write these instructions on a separate piece of paper. 

7. Swap your instructions-–hide your drawings
Trade your instructions with someone else in the class. Recreate a drawing based only on the words and instructions that were given to you.
Try two different classmate’s instructions.

8. Pair with your original partner
Compare Your Instructions with a Neighbor’s Instructions:
With a neighbor, compare how you each drew the shape, and compare your sets of commands to see where you have things in common.
Where did the drawer start?
Where did they end?
Did they draw it the same way as you?
Did they pick up the pen?
How many different commands do you actually need to draw this?

9. Reflect How were your instructions different than your neighbor’s?
Were your instructions as clear as you thought?

10. How do we overcome language discrepancies?
If we were going to change human language to improve our odds of succeeding at this activity, what types of changes would we need to make?

11. Conclusions
So long as there are multiple ways to interpret language, we cannot have perfect precision.
If we rigorously define the meaning of each command we use, then we can avoid misinterpretation and confidently express algorithms.
This is different from the way we normally think and talk, and it might even take a while to get comfortable with communicating in this way. Ta dah!! Computer programming languages!
Instruction game