| A | B |
| script | memory-facilitating outline of past experiences |
| scaffold | to structure a child's participation in learning encounters |
| theory of mind | our understanding of mental processes in ourselves and others |
| zone of proximal development | the cognitive distance between a child's actual and potential levels of development |
| overregularization | an inappropriate application of rules of grammar |
| fast mapping | the process by which words are learned after only one hearing |
| irreversibility | the inability to understand that original conditions are restored by the undoing of some process |
| centration | the tendency to think about one aspect of a situation at a time |
| conservation | the idea that amount is unaffected by changes in shape or placement |
| private speech | the internal use of language to form ideas |
| guided participation | the process whereby the child learns through social interaction with a "tutor" |