Arnan (Roger) Sipitakiat Chiang Mai University, Thailand Using Computational Thinking as Means for Human Comprehension OLPC Regional Workshop July 28, 2008

An Example of Computation in Learning

Method I: Calculus T x

Method II: Computational

Human Comprehension Earth

2. Pi. (r1-r2)

Balance Control

Children experiencing and thinking about balance control situations.

Simple IF-THEN Rules If angle < 0 [ setpower 8] If angle > 0 [ setpower -8]

Students’ Observations Car was moving too slowly Car was too “bouncy”

If angle > 10 and angle < 15 [ setpower 6] If angle > 5 and angle < 10 [ setpower 4] If angle > 0 and angle < 5 [ setpower 2] If angle > -15 and angle < -10 [ setpower -6] If angle > -10 and angle < -5 [ setpower -4] If angle > -5 and angle < 0 [ setpower -2] IF-THEN Rules with Gradient

Introducing the idea of Anticipation

Observing Body Motion ? Does this ever happen?

Observing Body Motion 1.Observing live actions 2.Reviewing recorded videos 3.Reviewing recorded sensor data

Car Speed (Red) Pendulum’s Angle (Yellow) 0

When giving a solution is insufficient Need time and space to negotiate meaning themselves

Top Tip Regulation

Descriptions on Paper

Balance Beam

SpiralHelixRing

On-orbit Reaction Control System (RCS)

Phase-Plane Controller

Comparison

Conclusions

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