The falling tower: Difference between revisions

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== Introduction ==
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<translate>
== Introduction == <!--T:1-->
<!--T:2-->
[[File:FallingTower.png|thumb| The Falling tower. Aim the robot and use the simplest steering block (with two motors) to setup the driving distancs.]]
[[File:FallingTower.png|thumb| The Falling tower. Aim the robot and use the simplest steering block (with two motors) to setup the driving distancs.]]


<!--T:3-->
Make a collision between a robot and a tower. The challenge is very exciting and fun. You get even more fun if the tower is located at the corner of the table, and the robot runs on a table.


Make a collision between a robot and a tower. The challenge is very exciting, and fun. Even more fun is possible, if the tower is located at the corner of a table, and the robot runs on a table.
<!--T:4-->
 
The tower can be made of almost any material, eg Legos, toilet paper rolls or wooden blocks.
The tower can be made of almost any material, eg Legos, or toilet paper rolls.


=== Aim ===
=== Aim === <!--T:5-->


The pupil will learn natural numbers (ie. 1, 2, 3, . . ), and also decimal notation. The integers can be teached using the reverse motion.
<!--T:6-->
Also, the notation of aiming to the target is elaborated.
The pupil will learn natural numbers (ie. 1, 2, 3, . . ), and also decimal notation if the distance is suitable.  
Also, the angle of aiming to the target is elaborated.


== Robot ==  
== Robot == <!--T:7-->


<!--T:8-->
Almost any robot with wheels will do.
Almost any robot with wheels will do.


=== Sensors ===  
=== Sensors === <!--T:9-->


<!--T:10-->
No sensors is used.
No sensors is used.


== Example  Video ==  
== Example  Video == <!--T:11-->


== Theory ==
== Theory == <!--T:12-->


<!--T:13-->
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.


<!--T:14-->
[[File:RotatingWheel.svg|thumb|The robot dives a fixed length depending on the diameter of the wheel (and the gearing ratio).]]


== Exercises == <!--T:15-->


== Exercises ==
<!--T:16-->
 
* Consider why the ancient towers are round?
* Let the pupils try and estimate the distances on a different table, without the tower. At the end of the exercise pupils test their distance assumptions.
* 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. So, move the starting line farther away from the tower.
* 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 go broken, even if it drops on a floor from a table, but you may put a pillow there under.
* 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.
* 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.
* Observe the movement of the tire, and check how far the robot drives during one lap.
* Try different tires if you have some.


<!--T:17-->
[[File:FallingTowerTable.png|thumb]]
[[File:FallingTowerTable.png|thumb]]


<!--T:18-->
Back to [[Mahtavaa Matematiikkaa 2020]]
</translate>


Back to [[Mahtavaa Matematiikkaa 2020]]


[[File:Mahtavaa matematiikkaa.png|thumb]]
[[File:Mahtavaa matematiikkaa.png|thumb]]

Latest revision as of 20:05, 25 October 2020

<languages />

<translate>

Introduction

The Falling tower. Aim the robot and use the simplest steering block (with two motors) to setup the driving distancs.

Make a collision between a robot and a tower. The challenge is very exciting and fun. You get even more fun if the tower is located at the corner of the table, and the robot runs on a table.

The tower can be made of almost any material, eg Legos, toilet paper rolls or wooden blocks.

Aim

The pupil will learn natural numbers (ie. 1, 2, 3, . . ), and also decimal notation if the distance is suitable. Also, the angle of aiming to the target is elaborated.

Robot

Almost any robot with wheels will do.

Sensors

No sensors is used.

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.

The robot dives a fixed length depending on the diameter of the wheel (and the gearing ratio).

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.

Back to Mahtavaa Matematiikkaa 2020

</translate>


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