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What Everyone Needs to Know About ComputationPowerPoint Presentation

What Everyone Needs to Know About Computation

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What Everyone Needs to Know About Computation

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What Everyone Needs to Know About Computation

Steve Cooper (coopersc@purdue.edu)

- Jeannette Wing’s CACM article, 3/2006

- Computational Thinking will be a fundamental skill used by everyone in the world by the middle of the 21st Century.
- Just like reading, writing, and arithmetic.
- Incestuous: Computing and computers will enable the spread of computational thinking.
- In research: scientists, engineers, …, historians, artists
- In education: K-12 students and teachers, undergrads, …

Abstractions

Automation

1. Machine

2. Human

3. Human + Machine

4. Networks of 1, 2, or 3

Computational Thinking is the process of abstraction - choosing the right abstractions - operating in terms of multiple layers of abstraction simultaneously - defining the relationships the between layers

as in Mathematics

guided by the following concerns…

Jeannette M. Wing

as in Engineering

NEW

- Efficiency
- How fast?
- How much space?
- How much power?

- Correctness
- Does it do the right thing?
- Does the program compute the right answer?

- Does it do anything?
- Does the program eventually produce an answer? [Halting Problem]

- Does it do the right thing?
- -ilities
- Simplicity and elegance
- Usability
- Modifiability
- Maintainability
- Cost
- …

Jeannette M. Wing

- Identifying meaningful contexts for students
- Media
- Alice
- Media Computation
- Scratch

- Robots
- Web Programming/Services
- Graphics

- Media

- Birds of a Feather
- Teaching your computer science course in context
- Leader: Steves (Cunningham and Cooper)
- 102C
- 5:15 – 6:00 PM tonight

And, identifying and sharing appropriate abstractions to help students to develop the ability to abstract

- Convincing CS faculty/departments of the importance of teaching CS courses for non-majors
- Creating several such courses for students with different needs/interests
- Convincing other departments as to the importance of CT, and helping them to incorporate CT into others of their courses

We have lots of courses that have shown to be successful individually, but how do we scale them?

“Letting one hundred flowers blossom…”

Chairman Mao