Showing posts with label lego. Show all posts
Showing posts with label lego. Show all posts

Tuesday, June 9, 2009

This is your brain on Lego



We aren't quite at the stage of these parents in this video but we had the 'Lego moment' whereby you realise that you are not buying Lego for the kids but for yourselves.Let me tell you once you can categorise a purchase under 'family activity' the sky's the limit. For us, every single Star Wars lego set has been purchased and all the ones that have been built are on display. But it doesn't stop there. Here was our project last weekend -- 2500 pieces built by myself and my 8 year old son and not a single game of chess played.


Tuesday, April 14, 2009

Managing disputes

Over at the Game Theory blog, Cheap Talk, Sandeep Baliga contemplates how to manage a Lego based dispute.

You hear the sound of Lego and see your kids building the John Hancock Building out of Lego. You smile, thinking, “The Inca Trail can never compare to the joy I just felt seeing the kids playing together so happily.” You turn to the crossword puzzle. Your reverie comes to a screaming end as a fight breaks out behind you. Who got one of diagonal bits that criss-cross the Hancock a bit wonky? You will never know but each kid blames the other.

What to do?

The situation reminds you of the famous Moral Hazard in Teams paper by Bengt Holmstrom. Someone clearly did not exert the cooperative effort level. But you cannot tell who it was as there is no kid-specific signal, just the aggregate signal of the building falling over and the fight. First, you think that you should be fair and punish a child if and only if the weight of evidence is high. You realize you’re screwed as you never have that level of evidence. You could ask the children what happened and cross-check what one did against the other. In fact, this would give an opportunity to apply your own research and you’re excited about that. It dawns on you that the 8 year old can always out-lie the 4 year old. And the volume of the four year old’s cries is measured on the Richter scale. Your research obviously did not take account of these practical matters.

Incentive theory gives the obvious answer: punish them both. This works very well if there is nothing random that can cause the building to fall over. Then, each child knows they get punished if they start fighting so no-one fights as long as the punishment is big enough. If a fight can start randomly - and we parents know this can happen - sometimes you’ll punish them even though nothing truly bad happened. This is unfair and inefficient but what can you do? This second-best solution is still better than no incentives at all.

Briefly, you think about the theory of repeated games which claims to get cooperation even when the game is quite noisy and there is lots of private information about who did what to whom. You remember that Jeff has made important contributions to this theory. You use your common sense and decide that using his research might take the application of game theory to family life a little bit too far. You get up, confiscate the Lego and send the kids to their room to get out of their pajamas and put clothes on. The ultimate punishment.
That is a good solution of the goal is 'peace and quiet' but the other options was to let the dispute run its course. Then you could play the role of arbiter. For instance, this seems like a good opportunity to use the wisdom of Soloman and divide the Lego to reveal who really values getting the tower built.

By the way, Lego disputes are a common societal affliction; see here.

Saturday, January 24, 2009

Evidence that I have gone insane

Click here for Exhibit A. It's free but should you view it, consider yourself over-charged.

Monday, September 1, 2008

Looking for Meaning in Lego

Now this is different. Dan Ariely, Emir Kamenica and Drazen Prelec have run a set of experiments on 'meaningful work.' Their paper describes the experiment with the goal of seeing whether meaningful work makes you work harder. Why am I writing about it here? Because the experiment used Lego.

The subjects were male undergraduates at Harvard University, recruited via posters around the university. Each subject participated in the experiment alone, without the presence of other subjects. Subjects were randomly assigned to one of the two conditions, Meaningful (N = 20) and Sisyphus (N = 20), and were unaware of the other condition. The procedure was similar to that used in Experiment 1. In each of the two conditions, subjects received payments for assembling Bionicle Lego models according to a declining unit wage schedule. Each Bionicle consisted of 40 separate pieces, with written instructions on how to assemble them into a figure. There was only one way to combine the pieces, and no subject had trouble following the assembly instructions. The mean time to build the first Bionicle was around 10 min. Before deciding whether to build each Bionicle, the subjects were told how much they had earned up to that point and how much they would earn for making another Bionicle. The subjects were paid $2.00 for the first Bionicle, $1.89 (11¢ less) for the second one, and so on linearly. For the 20th, as well as for any subsequent Bionicles, they received $0.02. The only decision the subjects made was when to stop making Bionicles. At that point, they were paid and the experimental session was over. During the experiment, we measured how long it took each subject to build each Bionicle. ...

In the Meaningful condition, after the subject would build each Bionicle, he would place it on the desk in front of him, and the experimenter would give him a new box with new Bionicle pieces. Hence, as the session progressed, the completed Bionicles would accumulate on the desk.

In the Sisyphus condition, there were only two boxes. After the subject completed the first Bionicle and began working on the second, the experimenter would disassemble the first Bionicle into pieces and place the pieces back into the box. Hence, the Bionicles could not accumulate; after the second Bionicle, the subject was always rebuilding previously assembled pieces that had been taken apart by the experimenter. This was the only difference between the two conditions. Furthermore, all the Bionicles were identical, so the Meaningful condition did not provide more variety than the Sisyphus one.

And the results:

the subjects in the Meaningful condition built significantly more Bionicles than those in the Sisyphus condition. In the Meaningful condition, subjects built an average of 10.6 Bionicles and received an average of $14.40, while those in the Sisyphus condition built an average of 7.2 Bionicles and earned an average of $11.52.

And there I thought that no matter what you did with Lego, it was meaningful. I guess that isn't the case.

Saturday, June 28, 2008

Measure of world wealth

Total number of Lego bricks in existence per head of population = 62
Total (estimated) number of Lego bricks in existence per head in Gans household = 10,000

I guess we are well into the top end of the world distribution of Lego. For so much more, read here.

Sunday, April 6, 2008

Anakin Skywalker Lego Cake


Regular readers know the we have an affinity with Lego -- and in particular Star Wars lego -- in our household. So it turns out the same is true for one of my 7 year old son's friends.

To the left is his 8th birthday cake. Yes, it is Anakin Skywalker (circa Attack of the Clones, ie., before the frown) in Lego minifig style. That is all chocolate cake (except for the lightsabre). Yummy. I wonder who got to eat his right hand?

Yes, before you comment on over the top birthday parties, blah, blah, blah, we all agree, but this is darn cool.

Tuesday, April 1, 2008

Even a child could do it

The Lego sculptures at the Brother's Brick are normally something quite special (for example). But check out the listings for April 1; they will help you understand and appreciate what your children are doing.

Thursday, January 3, 2008

Sorting out the Lego

As I begin construction of the 5000+ piece, Millennium Falcon, the first task is sorting out the Lego so I can find needed pieces. That task itself is going to take days.

According to this post, apparently the best way to sort out your Lego is to, umm, put it together!

Saturday, May 5, 2007

Leggo my lego

Over at Club Troppo, Don Arthur examines the controversy surrounding a Seattle school that banned Lego. Well, they didn't so much as ban Lego but put it aside for awhile while property rights rules could be established.

The teachers published an account of their decision in Rethinking Education:

A group of about eight children conceived and launched Legotown. Other children were eager to join the project, but as the city grew — and space and raw materials became more precious — the builders began excluding other children.

Occasionally, Legotown leaders explicitly rebuffed children, telling them that they couldn’t play. Typically the exclusion was more subtle, growing from a climate in which Legotown was seen as the turf of particular kids. The other children didn’t complain much about this; when asked about Legos, they’d often comment vaguely that they just weren’t interested in playing with Legos anymore. As they closed doors to other children, the Legotown builders turned their attention to complex negotiations among themselves about what sorts of structures to build, whether these ought to be primarily privately owned or collectively used, and how “cool pieces” would be distributed and protected. These negotiations gave rise to heated conflict and to insightful conversation.

It is worth a read. Legotown was accidentally destroyed and the older children refused to relinquish their ownership of the pieces. The teachers intervened and banned lego. They were worried about the power relationships and thought the children needed some education on authority, ownership and inequality.

Now the kids here were aged between 5 and 9. The teachers were worried that the older ones didn't appreciate the power they had over the others and the apparently arbitrary nature of all this. They turned the Lego experience into a later trading game stacked up against the older kids which, and this shouldn't be a shcok, the older kids didn't like one bit. It turns out they didn't like being arbitrarily put at the bottom of society. Funny that, they are like people that way.

Reading this well-meaning account and I wasn't there to appreciate the whole situation, so it is probably not appropriate to be judgmental, but were they out of their friggin minds? Let's be very clear about this. A group of 8 older children undertook an activity that involved the creation of an entire town out of Lego that took them two months to build. They were protective of it and excluded younger children who quite plausibly might have spent much of them time destroying the older kids' vision. You only have to observe this behaviour first hand for yourself to see it arise. It happens all of the time. It is an issue of control.

So quite understandably, when faced with the destruction they had tried so long to prevent, the older childrens' immediate reaction was to maintain control. They didn't see it as an opportunity to spread the wealth in a brave new world. They were mourning their lost creation and were not ready to move on. And the result of this; they lost everything and then were subjected to "lessons" in power and authority as the losers in society.

What disturbs me is that this was, as these things go, a very positive activity. There were eight kids who had formed a group to build Legotown. They had taken pride in it and had learned to work together and protect themselves from outside interference. Most of the time, one kids takes over and all is lost quickly. This activity sustained itself and was well above average for collective behaviour. The fact that it involved age segregation is just too bad. You can't have everything.

The teachers didn't see it that way and moved in a way that seems to the reader to punish the older children. Their explanations about what is going on are no less sophisticated than most adults on the topic. They hadn't devolved into Lord of the Flies or anything like it.

As I see it, the issue was not about Legotown; the children who built that owned it and that is surely fine. The issue was about the legos themselves. That was the scarce resource. If the older children were monopolising that, then that was the issue. The appropriate response would be surely to have rationed the lego and distributed that more fairly. If the older children wanted more lego, then they would have to do a deal with others. The idea that the thing they owned was gone if it was destroyed is surely too much. Would they have to give up their land if the house on it burned down? Was that the message?

Some commentators have been ridiculously vitriolic in their critique of these teachers. Yes they wrote up their account but then again they were just trying to work out how to teach children about fairness and society. It isn't easy to do this. What worries me is not their views about that -- in my experience, many teachers share that -- it is that they might have chosen the wrong moment to have the lesson and so it may not have been effectively. It is also not clear even from their account that the children didn't understand the forces at work. They saw the inequality based on something real -- age -- something they suffered at the other end of -- rather than something random and clearly stacked against them -- something that the trading game gave.

So I also don't agree that this tells us something of the appropriate values of capitalism or what have you. There is no real basis for this as a commentary on how we should organise society. This didn't really reflect that.

Instead, it tells us more about how children view and respond to ownership. In my experience, different individuals respond in different ways. Let me go to my own experience. My eldest, 8 year old, sees ownership as an 'option value.' She likes to own things just in case she needs them later on. So she will hoard and acquire anything. Nothing is immune to that and her room is a monument to that. The sheer waste in resources to me is distressing but that is just how she is.

My 6 six year old son, on the other hand, sees ownership as the ability to deny others access. He couldn't care less about owning stuff and won't try and take ownership from others. But give him ownership of something and he just loves it. He uses the toy and thing and takes care of it. It is exactly what we want ownership to mean.

The two extremes here represent what is right and wrong about ownership but not perhaps in the way you think. My son's view emphasises the caring and use role of ownership -- it encourage things to be used efficiently and appropriately. My daughter's view emphasises the accumulation and creating role of ownership -- it encourages things to be made and acquired in the first place. Society requires both to function efficiently. Just having one leads to inefficiency -- through either waste or forgone opportunity.

The kids at Hilltop employed both. They owned enough material to create and they excluded enough others to maintain what they were doing. If only more adults could work out that compromise as effectively.