Sunday, September 27, 2015

Team Meetings September 23, and 24, 2015


Presentation

No formal presentation or white board today.

Outline

The kids spent a lot of time working on missions.  They are very close on several of them.



The kids also did several team building exercises including discovering a helium ring.



Homework

Read and reread the Challenge doc until you know the set-up of the missions, their names, and the rules.

What's Next

 Continue to work missions.

NC FLL Programming Workshop



Here are the slides from the NC FLL Programming Workshop that took place on 9/26 at RLC in Cary.  The workshop was very informative, and we had a good time.  I put this video together to share scenes from the workshop.


Things I took away from the day.
1. We need to test coasting to a stop instead of breaking when we have the brick sorter bin on the robot. The braking may be why the robot is dumping the bricks out early.
2. There are large, crane Lego bricks that are 2oz. each.  These are legal for helping to create a center of balance.  I found some on eBay and ordered them.
3. My Blocks keep coming up and are important.
4. We had a chance to display gracious professionalism by sharing some of our equipment during the day.

Monday, September 21, 2015

Team Building and Mission Solving September 17, 2015

Presentation

No formal presentation or white board today.

Outline

The kids did two team building exercises. The first involved cutting a banana into 5 pieces. THEN, they were told to put it back together with string and a few other supplies. Hard but fun!


The second exercise involved spaghetti and marshmallows. They were told to build a structure where each team member would add one spaghetti stick and one marshmallow and then move on to the next person.


We also continued work on solving missions. No major breakthroughs today, but the kids worked very hard.

Homework

No reading. Continue to think about how to solve your mission. Write down any ideas you have!

What's Next

Besides solving missions, the kids need to work on the programs to navigate the robot on the table to the desired mission model/position.

In order to progress on the project, the kids need to pick a trash item to center the project around.

Lego League Prep


Kitty is a very good helper when I'm prepping for Lego League:-)

Most Mondays, and sometimes on Wednesdays too, I am knee deep in Lego bricks prepping for our team meetings.




Thursday, September 17, 2015

Robot Design September 16, 2015



Presentation

I did a brief presentation this week on the white board about robot design.

Robot Design - Going Straight

  1. Wheelbase - Wider is better
  2. Weight - Heavier is better (keeps wheels from slipping) 
  3. Wheel Support - Reduce friction with bushings
  4. Reusable Battery - More consistent power
  5. Wall Following Helpers (wheels without rubber as guides on the side of the robot)
  6. Use a Jig
  7. Motor Matching - Large servo motors
  8. Avoid Gear Slack
  9. Center of Balance


Outline

After our talk about robot design, the kids worked on solving their missions.  One of our teams had immediate success with a solution for the sorter. Yippee! Watch the video and share in their success.




Homework

No reading.  Continue to think about missions and how to solve them.

Thursday, September 10, 2015

September 9 and 10, 2015



Presentation

This week's presentation (Thursday) is located here. No presentation from Wednesday.

Outline


On Wednesday, the kids worked on the exercises in Chapters 5, 6, and 7.  They didn't get as far as I hoped.  To keep us on track, I demoed the touch sensor and the color sensor.

On Thursday, we voted for our t-shirt design, and Ms. Norwood worked with the students on the project. The team did to fun team building activities.

Homework

Write down 5 or more ideas about the mission you volunteered to work on.

Joshua/Gavin - Building with Brackets
Kenny/Camden - Power Station
Beth/Makayla - Flip Car
Luke/Jacob - Sorter
Zoey/Johnny - Composter

Come up with 2-3 piece of trash you think we can save from the landfill and how.

What's Next

Begin work on robot design and mission solutions.

Pick the piece of trash for the project.

T-Shirt Winner




The t-shirt winner is the upper left picture in the collage. We need a better team name than simply the Vance Panthers...

Behind the Scenes




I am reading the book Winning Design!: Lego Mindstorms NXT Design Patterns for Fun and Competition.  I put together the book's demobot today.  It was frustrating because the EV3 Large Servo Motors are shaped differently.  I finally figured out a way around it.

This robot drifts 1-2 inches to the right across the FLL table.  I'm not sure why.

I created the motor matching machine, also from the book, and found our large servo motors to be evenly matched.


Thursday, September 3, 2015

Resetting the Robot Game Field

One of the coaches from Ballentine Elementary shared a Trash Trek Board Set-up doc with the NC FLL coaches Yahoo group.  Seems very useful.  I am printing everyone a copy.

Trash Trek Board Set Up
15 POINT CHECK
 1. In Base: Octopus, Chicken, Engine/Windshield,
 2 People, 2 Yellow Bars 2. Turtle and Plastic Bag Loop on their marks
 3. 2 Methane Loops in their holder, aligned as shown on mat
 4. Plastic Bag Loop inserted in Sorter
 5. Toy Plane in Small Package on its mark
 6. Toy Plane in Large Package (made of 2 yellow bars, 2
black bars and 1 base) in the Factory
 7. Car facing west, with front tires aligned to arrows
 8. Truck facing west with front tires aligned to arrows
 9. 4 black penalties on railing
10. 2 blue and 2 black Bars in the red Sorter tray, smooth side up. Bar color order and axle direction should match the diagram on the mat
11. Green Bins below Sorter should rest ON the Bin Bracket’s axle
12. Yellow Bin containing a yellow Bar (centered east/west with smooth side down) loaded on north side of Sorter
13. Building set up as shown on Bracket, with Valuables Loop in slot and 4 Bars of each color set up with smooth sides facing west
14. Composter set up with food scrap bin all the way up, yellow plunger out, and brown Compost Disc loaded, studs facing up.
15. No other Lego pieces should be on the board –put everything away!
PLEASE BE GRACIOUS! RESET BOARD EVERY TIME!

Trash Trek Project Homework


Your Project mission this season is to make less trash or improve the way people handle the trash we make.

Ms. Norwood led the students in a brainstorming exercise on the Trash Trek project at our last meeting (9/2).  She wrote their ideas on the white board, pictured above, and I've listed them below. These are good ideas, but I'm not sure they've come up with THE idea.

Cordless Ear Buds
Claw
Lego Bricks
Old Sports Equipment
Batteries
Buttons
Paper Plates
2 Liter Soda Bottles
Old Folders
Old Fabrics
Cardboard
Markers
Stuff Animals
Old Electronics
Socks
Plastic Utensils
Shoes
Paper
Plastics
Pencils
Lighters
Food
Ink Pens
Old Backpacks

1. The kids need to identify a trash problem.

"As a Team – Identify a problem with the way trash is handled and learn about it. You might select a problem in one of these areas (or add your own):
● Collecting trash
● Finding new uses for old items (repurposing)
● Food waste ● Electronics waste (phones, computers, etc.)
● Hazardous waste (medical, chemical, etc.)
● How trash impacts your community
● Landfills
● Making zero-waste products
● Recycling process
● Sorting

As a Team – After you select a problem, find out about the current solutions. Why aren’t the current solutions working? Why does this problem still exist?"

2. Then they need to design a solution.

"As a Team – Think about:
● What could be done better? What could be done in a new way?
● Could your solution make it more cool, fun, or easy to be responsible about trash?
● How can you reimagine disposing of trash to make it more efficient or safe?
● Could your solution prevent an item from becoming trash in the first place?"

3. They also need to share their solution.

"Once you design your solution, share it!

As a Team – Think about who your solution might help. How can you let them know? Can you present your research and solution to people who recycle, transport, store, reuse, or create trash? Can you share with a professional or someone who helped you learn about your problem? Can you think of any other groups of people who might be interested in your idea? Consider including someone who could provide feedback about your solution.

Getting input and improving are part of the design process for any engineer. Don’t be afraid to revise your idea if you receive some helpful feedback."

4. Then the kids present at regionals.

It would be great if trash could become a family topic of conversation at dinner, riding in the car, etc. What other trash items do the kids think is a problem. Do they have any ideas on how to improve the current solution, prevent the problem in the first place, etc.

Take for example fishing line. Fishermen would allow used line to get into waterways. This had negative impacts on animals and the environment. Then, someone came up with the idea of putting fishing line trash cans on docks and other places where people fish.  The trash cans are made out of white PVC pipe which is cheap and durable.  Usually a sign accompanies the tubes.  We'd have to look up the numbers, but let's assume they are really decreasing the fishing line that isn't disposed of properly.

See if the kids can think of other recent changes that improved trash prevention or handling. Maybe that will lead them to other ideas and solutions.

Ms. Norwood and I are working on setting up a tour at the Sunoco recycling facility during trackout and possibly the Johnston County landfill.  We'll keep you posted when we have more details.








Wednesday, September 2, 2015

Wheels and Distance September 2, 2015

Presentation

This week's presentation is located here.


Outline
  1. Go over presentation which includes:
    • Lego ruler and demo
    • Default ports review
    • Move Tank review
    • Wheels size, circumference, and distance traveled - How to calculate
    • Base vs. Safety on the playing field
  2. Review mission models and missions. Use Sticky Notes to label mission models. Sometimes the mission model name and the mission have the same name but most of the time there are two names to learn.  See pages 10-13 and 23-25 of the Challenge doc.
  3. Project and Team Building.
  4. Do the Discovery lessons in Chapter 5 of the EV3 Discovery Book. (We didn't get to this.)
Homework

Read Chapters 6 and 7 of the EV3 Discovery Book.  Separate post on the project homework coming next.  I'm also taking turns sending home Idea and Building books with the kids.  These books will help the kids build the attachments the robot needs to manipulate the mission models.  Please send the books back to the following meeting.  Joshua, Jacob, and Luke have books this week.

What's Next

Do the Discovery lessons in Chapters 5, 6 and 7 of the EV3 Discovery Book. This will get out through movement AND sensors including Touch and Color.