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

2. An Example of Computation in Learning

3. http://www.e-cpe.org/olpc/chaba.jpg

4. Method I: Calculus T x

5. Method II: Computational

6. Human Comprehension Earth

7. 2. Pi. (r1-r2)

9. Balance Control

10. Children experiencing and thinking about balance control situations.

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

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

14. 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

15. Introducing the idea of Anticipation

16. Observing Body Motion ? Does this ever happen?

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

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

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

21. Top Tip Regulation

22. Descriptions on Paper

23. Balance Beam

24. SpiralHelixRing

25. On-orbit Reaction Control System (RCS)

26. Phase-Plane Controller

27. Comparison

28. Conclusions

32. THANK YOU