Thursday, September 28, 2006

Week 3: September 22

After the high emotions at the last meeting, I was prepared for this meeting to be a challenge.

Well, kids will always surprise you. They all walked in as if nothing untoward had happened at the last meeting. They quickly reached agreement on their robot base, and there are no hard feelings at all. Actually, they told me they had reached this agreement at the end of the last meeting - somehow I must have missed it during all the shouting and name-calling!

They have developed their own design, a basic chassis with two drive wheels and a slider. It should travel reasonably straight, turn easily, and can drive forward or backward with places for attachments on both front and back.

The next step is to start working on the missions, which were released just a few days ago. As we predicted, there are several missions which require delivering items, as opposed to last year where there were several retrievables. First I showed the team a video from the High Tech Kids website which showed several innovative approaches to solving the retrievables missions from Ocean Odyssey (http://www.hightechkids.org/?2-1-1054#FLL_Strategy_Videos). Since all our team members had competed in Ocean Odyssey, they were able to appreciate the variety of solutions and it really got them in the right mood for brainstorming.

Next, we reviewed the NanoQuest missions. They wanted to look at the Cable Tester (truck) and the Stuck Nanotip first, so they broke into pairs with the goal of brainstorming at least five approaches to each mission.

They still had trouble working together, however. Being all in one room, they managed to get in each others' way constantly, and spent a lot of time listening in on each others' discussions. It took considerable persuasion to get them on track again. How would they have managed if there were more kids on the team?

By the end of the meeting, they had several ideas for most missions and at least two for every mission except the Individual Atoms.

Week 2: September 15

Since other extra-curricular activities have not yet started for the team members, we decided we could take a full day for this meeting. The project was scheduled for the morning, with a generous lunch/soccer break followed by an afternoon on robotics.

The research project was first on the agenda. The kids had used the comments feature of our private blog to brainstorm ideas for the project topic. Surprisingly, they were able to reach agreement on a topic and begin to flesh it out. They have decided to investigate ways of utilizing nanotechnology to capture electricity from lightning. (They are nothing if not ambitious!) Since the challenge was officially released during our meeting time, we were able to check that this topic can fit within the project challenge for this year.

So the kids each presented a little bit from the reading they had done since the last meeting, and they identified several areas where they want to find out more, including nanocapacitors, nanosponges, nanocatalysts, and solar paint. Again, everyone chose an area to research before the next meeting.

After their soccer/lunch break, we reconvened to work with the robots. Since the team still had not decided on a base robot, that was the main focus of discussion. The kids were totally unable to reach agreement, and worse, they were incapable of discussing the pros and cons with any logic. Language got emotional, tempers flared, and the kids took turns stomping off.

After some nasty name-calling erupted, Chaz and I had to call the group to attention and remind them of some basic team rules like respect and gracious professionalism. They weren't really ready to settle down, but some grudging compromises were made.

Week 2: September 12

We split our time between the project and the robotics at this meeting, beginning with the project. Each team member presented the information they had researched on the topics chosen at the Sept 6th meeting. It's clear this is a large topic and needs to be narrowed down so their research can be focussed on an area relevant to the final project, otherwise the team will spend a lot of research time on topics that are later discarded. Last year the team found that very frustrating, so we are attempting to reach agreement on a topic much earlier this season.

Several topics emerge as interesting possibilities: carbon nanotubes and energy solutions (creating or storing) are at the top of the list. The team agreed to use our new private blog as a way to communicate their ideas to each other until the next meeting. They did agree to abide by the standard brainstorming rules - keeping an open mind and not making negative remarks about other suggestions. We'll see how it works.

In the robotics, they showed the robots they had built at home. There were strong feelings about the merits and problems of each robot, and it seemed difficult for the kids to focus on individual design elements. Comments like "my robot's better than yours" abounded. The meeting ended without any agreement, so the discussion of the robot base will continue at the next meeting.

Sunday, September 10, 2006

Week 1: September 8, First Robotics Meeting

Up until this point, we were still not sure if others would be joining our team. We had advertised for girls to join us, but couldn't find anyone who was interested and available. So we have only the four boys that are returning from last year. That means these four kids will have been together for two years (they were four of our original six from last year).

We have two reservations about restricting the team in this way: these four won't be challenged by new approaches and new ideas; and it may make it even harder to rejuvenate the team with "fresh blood" next year. Nevertheless, the decision was taken and we are all content with the situation for this year.

Since the team membership is now decided, this was the first meeting where we really got down to business with the robot. All kids have had a chance to play with it and experiment, so we set down to the task of considering how this robot kit can solve this year's challenges. The kids came up with some ideas for what would be important in the robot base, and these were recorded. Lots of ideas were thrown out for discussion: treads vs. wheels, how many wheels, where the driving wheels should be, size of the robot, centre of gravity, ways of attaching sensors, etc.

The team left the meeting with lots of ideas and a general sense that maybe they would be happy using the robot from the Lego Education design, with some modifications. This is a big step since they really want to be original and design their robot from scratch. However, this approach became very time-consuming last year, and also fairly divisive.

For now, they have each agreed to build a robot from other plans or pictures, which they will bring to the next meeting. The emphasis will be on demonstrating any new approaches or great ideas that can be incorporated into their modified base.

The other robot designs they are building:
http://mindstorms.lego.com/MeetMDP/BBonahoom.aspx
http://mindstorms.lego.com/MeetMDP/BDavis.aspx
http://mynxt.matthiaspaulscholz.eu/robots/goliathII/index.html

Thursday, September 07, 2006

Week 1: September 6, First Project Meeting

My friend Monique has stepped forward to lead the group in their research project this year. The team met in her home (most meetings are at my place) and gathered around her dining room table to share what they have already learned about nanotechnology. It's a big topic and you can tell that the kids are both intrigued and intimidated by it.

They talked about scale, and tried to put a group of pictures in order from largest to smallest. The pictures included things like single molecules of DNA or carbon, and light waves at various frequencies.

Next Monique brought out a set of test tubes, a pitcher of water, and blue food colouring. They made a series of mixtures, starting out with pure food colouring and diluting it to one-tenth the previous concentration with each step. It didn't take long to understand that one part per billion is very, very little, so one-billionth of anything must be very, very small.

Finally, they considered a list of products that are already on the market, supposedly using nanotechnology in some way. In many cases it wasn't clear just what technology was being used in each of these products, or just how the product was improved by using nanotechnology. They discussed how "nano" could (potentially, not necessarily) be just a marketing term to make something seem better.

Each team member left the meeting with a couple of areas to look into further.