In looking at learning it is not enough to look at "learning how to learn" (ie. concentrate on the learner) but we need to study the basic structure of the subject itself. Papert investigates the basic structure of mathematics in some detail including a critique of the formal logical thinking emphasised in Bertrand Russell’s Principia Mathematica and the "new math" of the 1960s/70s. In Piaget/Papert’s view the basic structure of maths is derived from the thinking of the Bourbaki school: order, proximity (topology), combination (algebra).In Papert’s view it is not natural that advanced maths ideas are inaccessible to most. What Papert has tried to do is restructure maths so as to accommodate the natural tendencies of the child. Instead of mathophobia Papert hopes to create a mathsland where it will be natural to learn maths, like learning to speak French in France.