本研究從讀寫萌發的觀點，探討一位幼兒在家庭自然情境中閱讀與書寫能力發展的歷程和影響此歷程的因素。本研究採用質性研究法，以參與觀察、訪談和文件分析等方式蒐集資料。研究發現，此幼兒的閱讀和書寫能力的發展重疊且相互關聯，是持續而不是線性的。她以生活經驗做為符號辨識、解讀的基礎，並藉由觀察、模仿覺知書寫的功能和形式，進而學習成為書寫者。家庭讀寫環境和資源、她與家人的互動，以及她的動機與興趣，均影響她的讀寫能力發展。

Based on emergent literacy theory, this study aims to explore the literacy development of a child in a natural family setting, and to analyze the factors influencing her literacy development. A qualitative research method was employed, and data were collected through observation, interviews, and document analysis. The findings show that this child’s reading and writing, which develop along a continuum rather than follow a linear path, are overlapping and interrelated. Her reading behavior is related to her daily life experiences. This behavior serves as a basis in helping her identify and interpret signs and words. In addition, she learns to be aware of the functions and forms of writing and to become a writer through observation and imitation. This child’s home literacy environment and resources along with her motivation and interest toward reading and writing activities influence her literacy development.