This document discusses variations in language and literacy development. It explores different dialects including standard and non-standard dialects. It examines how social factors like socioeconomic status and region can influence a person's dialect. The document also discusses biases that may exist toward certain dialects and how this can impact children's learning. Additionally, it analyzes communication styles between parents and children from different social groups and how this relates to literacy. Finally, the document considers questions around how dialects and bilingualism may influence reading and writing development.