Video tutorials by I.Bozhilov

So far we have covered mainly the technical side of teaching studenst LEGO Robotics. However, another important part is the methodology. How you explain complex concepts to students, how you conduct the classes or how you push the students to constantly improve?

Have you seen the wheel(s) of a car spinning, but the car itself is not moving? Why does it happen?

This is a brief summary of the tasks in the lesson and the experiments with the differential that the students will conduct during the class. Bellow you can find a list of the tasks and what to expect from them. Take a look at them prior to the lesson, so that you there will be no surprises.

The students have already built stands in the previous lesson and it is expected that they will need lesser time to build it this time. They will conduct the same experiments, but as they will use different construction, we can expect different results.

The goal of the lesson is for the students to learn 3 state line following.

Scores

Only one score counts.

If the number of Precision Tokens left on the Field is:

• 6: 60
• 5: 45
• 4: 30
• 3: 20
• 2: 10
• 1: 5

(mission descriptions source https://www.first-lego-league.org/)

Scores

Only one counts per stack

If an Upgrade (solar panels, roof garden, insulation) is Independent, and Supported only by a Stack which is at least partly in any Circle:

• 10 For Each Upgrade

(mission descriptions source https://www.first-lego-league.org/)

Scores

Please take the needed time to understand the scoring examples.

LOCATION

If there are any Circles with at least one color-matching Unit Completely In, and Flat Down on the Mat:

• 10 Each Circle

HEIGHT

If there are Independent Stacks at least partly in any Circles, add all of their heights together:

• 5 Each Level

 

Note: The Blue Circle is not Part of Mission 12.

Note: A Stack is one or more Building Units with Level 1 touching Flat Down on the Mat, and any higher levels touching Flat Down on the level below.

 

Color match = no

Tan stack = 2 levels

White stack = 1 level

15 points shown

• 10 points from 2 Tan stack levels
• 5 points from 1 White stack level

Color match = no

Bridged stack = 4 levels

20 points shown

This whole stack counts as one independent stack because the white unit is rested on top of the red one. This stack is partially in the circle. It is 4 levels high, so 4x5 = 20 points. 

 

Color match = red

Red stack = 2 levels

Other stack = 4 levels

40 points shown

• You have 2 independent stacks in the same circle
• From the red stack you get 5 points per level, 2 levels=> 2x5 = 10 points.
• From the red circle you get 10 points because there is a red structure completely in and flat on the mat.
• From the other stack you get 5 points per level, 4 levels => 4x5= 20 points.
• 10 + 10 + 20 = 40 points.

Scores:

score one or the other

If there is a team-designed Structure clearly bigger than a Blue Building Unit, built only from your white LEGO bricks

• Completely In any Circle: 15 
• Partly in any Circle: 10

Note: Design and build your own Structure before you compete, then bring that to each Match. You don’t build it during the Match.

Note: Your mission 11 Structure needs to be built from Bag 10 elements only. It can include the red and gray elements. Not all of the Bag 10 elements need to be used.

(mission descriptions source https://www.first-lego-league.org/)

Scores:

If the Steel Structure is Standing, and is Independent, and Supported only by its hinges as shown:

• 20

(mission descriptions source https://www.first-lego-league.org/)

Scores:

If the Test Building is Independent and Supported only by the blue beams, and some beams have been knocked out at least half way:

• 1 Beam - 10
• 2 Beams - 20
• 3 Beams - 30
• 4 Beams - 40
• 5 Beams - 50 
• 6 Beams - 60

(mission descriptions source https://www.first-lego-league.org/)

Scores:

Score one or the other

If the Elevator’s moving parts are Independent, and Supported only by its hinges as shown, in the following position:

• Blue Car Down: 15 or
• Balanced: 20

(mission descriptions source https://www.first-lego-league.org/)

 

Scores:

If the Swing is released: 20

(mission descriptions source https://www.first-lego-league.org/)

Scores:

If the Traffic Jam is lifted, its moving part is Independent, and it is Supported by its own hinges as shown: 10

(mission descriptions source https://www.first-lego-league.org/)

Scores:

Score all that apply

If a Unit is Independent and Supported by the Tree’s:

•  Large Branches: 10 Each Unit and
•  Small Branches: 15 Each Unit

(mission descriptions source https://www.first-lego-league.org/)

Scores:

If the Bat is Supported by branch (B) on the Tree: 10

(mission descriptions source https://www.first-lego-league.org/)

Scores:

If the Inspection Drone is Supported by axle (A) on the Bridge: 10

(mission descriptions source https://www.first-lego-league.org/)

Scores:

Score all that apply

If the Hooked Blue Unit is:

• Clearly lowered any distance from the Guide Hole: 20 and
• Independent and Supported by another Blue Unit: 15 and
• Level 1 is Completely in the Blue Circle: 15

Note: You can only get Flag points if you get Bridge points.

Note: Rule 31 allowance: It is okay and expected for Robots to collide while trying to earn Flag points.Note

Note: When clearly only one Robot is holding a Flag raised, only that Robot scores for that Flag

(mission descriptions source https://www.first-lego-league.org/)

Scores:

Score all that apply

• If the Robot is Supported by the Bridge: 20 and
• If one or more Flags are clearly raised any distance, only by the Robot: 15 Each Flag

Note: You can only get Flag points if you get Bridge points.

Note: Rule 31 allowance: It is okay and expected for Robots to collide while trying to earn Flag points.

Note: When clearly only one Robot is holding a Flag raised, only that Robot scores for that Flag

(mission descriptions source https://www.first-lego-league.org/)

Once again we have prepared a quick summary of the common problems students may face while programming the spy vehicle. Then there are example solutions to the tasks in the lesson. Taka a look at them prior to the lesson, so that you will be prepared for any issues that may arrise. 

The EV3 brick of the Demogorgon bot is position upsidedown i.e. with the display facing toward the floor. It is important to point that out to the students with explanation why this is not a good practice. Then you can take a look at the example solutions provided to the tasks that should be solved using the switch block.