What children can do with the assistance of others might be in some sense even more indicative of their mental development than what they can do alone

Learning is more than the acquisition of the ability to think; it is the acquisition of many specialized abilities for thinking about a variety of things.

Any human act that gives rise to something new is referred to as a creative act, regardless of whether what is created is a physical object or some mental or emotional construct that lives within the person who created it and is known only to him.

The only 'good' learning is that which is in advance of development.

Experience teaches us that thought does not express itself in words, but rather realizes itself in them

By giving our students practice in talking with others, we give them frames for thinking on their own.

What a child can do today with assistance, she will be able to do by herself tomorrow.