What everyone needs to know about computation
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What Everyone Needs to Know About Computation. Steve Cooper ( [email protected] ). How to Think Computationally. Jeannette Wing’s CACM article, 3/2006. Jeannette’s Grand Vision.

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What Everyone Needs to Know About Computation

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What everyone needs to know about computation

What Everyone Needs to Know About Computation

Steve Cooper ([email protected])


How to think computationally

How to Think Computationally

  • Jeannette Wing’s CACM article, 3/2006


Jeannette s grand vision

Jeannette’s Grand Vision

  • 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, …


Computing is the a utomation of a bstractions

Abstractions

Automation

Computing is the Automation of Abstractions

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


Measures of a good abstraction in c t

Measures of a “Good” Abstraction in C.T.

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]

  • -ilities

    • Simplicity and elegance

    • Usability

    • Modifiability

    • Maintainability

    • Cost

Jeannette M. Wing


What does ct mean for everyone 1

What does CT mean for everyone? - 1

  • Identifying meaningful contexts for students

    • Media

      • Alice

      • Media Computation

      • Scratch

    • Robots

    • Web Programming/Services

    • Graphics


A pitch for contexts

A pitch for contexts

  • Birds of a Feather

    • Teaching your computer science course in context

    • Leader: Steves (Cunningham and Cooper)

    • 102C

    • 5:15 – 6:00 PM tonight


What does ct mean for everyone 2

What does CT mean for everyone? - 2

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


Challenges 1

Challenges - 1

  • 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


Challenges 2

Challenges - 2

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


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