Holding content explicitly requires a form of self-knowledge. But what does the relevant self-knowledge look like? Using theory of mind as an example, this paper argues that the correct answer to this question will have to take into account the crucial role of language-based deliberation but warns against the standard assumption that explicitness…

Intellectual (cognitive) development, the emergence of increasingly sophisticated forms or levels of understanding, reasoning, and rationality is an ongoing process of reflection, coordination, and social interaction that begins in early childhood and continues, at least in some cases, long into adulthood (Moshman, 2003). In this process, language…

Both Vygotsky, a psychologist, and Halliday, a social linguist, argue for the central role of language in human development. Language is the principal mode of meaning making; it mediates both the communication through which thinking with others is made possible and also the inner speech through which individual thinking is brought under conscious…

Focuses on theories concerning the origin of language. The article indicates that the language-origins theories most favored in contemporary science all have their roots in the intellectual preoccupations of the early scientists and philosophers of the European Enlightenment. The article concludes that the origin of language myth reveals itself as…

This brief report from the Indigenous Mathematics Project focuses on the way in which numerical reasoning is changing in the Oksapmin community of Papua New Guinea as a function of participation in new social institutions: economic exchange with currency and enrollment in school. Each of these new institutions means that arithmetic problems are…