The falling tower/fi: Difference between revisions
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Revision as of 19:11, 25 October 2020
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Johdanto
Yritä törmätä robotilla torniin. Haaste on hauska ja jännittävä. Lisäjännitystä saat, jos torni on pöydän reunalla, ja robotti voi pudota jos se menee liian pitkälle.
Tornin voitte rakentaa lähes mistä materiaalista vain, esimerkiksi Legoista, vessapaperirullista tai puupalikoista.
Opetustavoitteet
Oppilaat oppivat luonnonollisia lukuja (esim. 1, 2, 3, . . .) ja ehkä desimaaliesitystä, jos robotin etäisyys tornista on sopiva. Myös kulman käsite tulee esille.
Robotti
Lähes mikä tahansa renkailla kulkeva robotti sopii tähän harjoitukseen.
Anturit
Ei tarvita antureita.
Example Video
Theory
The robot drives a fixed length depending on the diameter of the wheel (and the gearing ratio). Estimate the driving distance of the the robot.
Exercises
- Consider why the ancient towers are round?
- Have two tables, one for training (without the tower or any markings), and the other with tower and marks. The pupils will learn estimating.
- If the distance is larger, the aiming of the robot will be more difficult. Move the starting line farther away from the tower.
- Put the tower at the border of the table, so that if the robot runs too far, it will fall down. Usually the robot will not break, even if it drops on a floor from a table, but you may put a pillow there under.
- The green steering block can be adjusted to move according to the time, also. Thus it is possible to estimate seconds, also. Estimate how far the robot will drive in a (eg) 5 seconds.
- Observe the movement of the tire, and check how far the robot drives during one lap.
- Try different tires if you have some.
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