Vocabulary Development with Young Children
Vocabulary development in young children happens through a combination of external influences interacting with tremendous internal mechanisms, the need to know.
Montessori values the power of the eye-hand-brain nexus, where knowing something requires interaction, manipulations, trial-and-error, and a supportive prepared environment. One key term she uses is stereognostic, knowing something (gnosis) in more than one way (stereo).
Here are some major authors on vocabulary development with young children
Beck
Graves
Kucan
McKeon
Look them up for more info, current research, strong time-tested principles of vocabulary development.
Here is a study in how Montessori supports vocabulary development in the young child.

