ABSTRACT
What do we mean by logical development? It really has two possible senses. The first and weaker sense is that children will get better at solving logical problems as they grow older. But if this is all that logical development means, it cannot be very important. For it would be amazing if it were not so. We should be enormously surprised if we gave children a series of problems involving various logical moves and did not find that the younger children failed more often than their elders. In fact we already know from intelligence tests, from Piaget's work and from many other sources that the expected thing happens. Children do get better at this sort of task as they grow older.
