The first thing to note is that pornography and many abductions occur apart from the use of computers, and that most child abuse happens within the family. So I think the extra degree of danger that computers pose doesn't justify the frenzy.

The word constructionism is a mnemonic for two aspects of the theory of science education underlying this project. From constructivist theories of psychology we take a view of learning as a reconstruction rather than as a transmission of knowledge. Then we extend the idea of manipulative materials to the idea that learning is most effective when part of an activity the learner experiences as constructing a meaningful product.

Undoubtedly, there are kids with intellectual deficiencies or neurological problems. But a lot of kids shunted into special education classes are deficient only in a willingness to conform to the school pattern.They are just honest, brave kids who say, "I just won't take that, and I don't believe in what you're doing." If you give them an alternative to the usual classroom, they break free of a lot of inhibitions and bad associations, and they begin to learn.

Every maker of video games knows something that the makers of curriculum don't seem to understand. You'll never see a video game being advertised as being easy. Kids who do not like school will tell you it's not because it's too hard. It's because it's--boring

One might say the computer is being used to program the child. In my vision, the child programs the computer, and in doing so, both acquires a sense of mastery over a piece of the most modern and powerful technology and establishes an intense contact with some of the deepest ideas from science, from mathematics, and from the art of intellectual model building.

My ex-student, Idit Harel, who wrote a book, "Children Designs," has a documented story of a kid who was very shy, isolated and didn't talk much to other kids. She was a little overweight, and the other kids looked down on her for that reason.But then she made a discovery about how to do something on the computer. The discovery was picked up by other kids, and within a few weeks there was a total transformation. This kid was now in demand. And that changed her feeling about herself.

The role of the teacher is to create the conditions for invention rather than provide ready-made knowledge.