Parents and educators often rush children to read and write, viewing these skills as the ultimate markers of early learning success. However, linguistic history and cognitive science show that spoken language is the actual foundation of literacy. Before any language is written down or read, children must first speak and hear it.
What Happened
The relationship between spoken words and written characters is a frequent topic of debate for language educators. In a recent analysis, Duolingo's linguistic team showed that spoken languages exist independently of writing systems. Writing is a visual technology developed to preserve speech, but grammatical complexity does not depend on a written alphabet. Historically, languages like Hawaiian were preserved strictly through oral traditions before being standardized into print by external observers.
This division between speaking and writing creates problems when teaching oral-first languages. When Duolingo built its Haitian Creole course, developers had to address standardized spelling. For centuries, French colonial rule restricted the formal use of Haitian Creole in schools. As a result, different regions and diaspora communities developed distinct phonetic spelling rules. Deciding on a single standard for a digital platform is highly sensitive because spelling systems represent cultural identity rather than mere technical rules.
The Bigger Picture
For young children, development mirrors human history: spoken language must come first. A study published in Frontiers in Education evaluated 341 children aged 3 to 5 and found that structured oral language stimulation, like rhyming and storytelling, directly predicts a child's reading comprehension and written expression in primary school. Similarly, a research synthesis by the Kentucky Reading Research Center concluded that targeted oral vocabulary instruction during preschool is essential for long-term reading success.
When communities transition a spoken language into a written one, classroom success depends on how the spelling system is built. Research on the Hawu language of Indonesia shows that highly phonetic, transparent spelling systems make it much easier for children to learn to read. Conversely, when spelling systems are forced on communities from the top down, they often fail. A study on the Madurese orthography reform found that a 2011 spelling change created severe classroom confusion and inconsistent teaching because local teachers and community members were excluded from the decision-making process. Standardizing indigenous languages requires community-driven development. For example, Uganda's National Curriculum Development Centre recently launched the LëbThur orthography to introduce native-language reading directly into schools.
What This Means for Families
For parents raising bilingual children or managing school systems in a non-native language, this research shifts the focus from worksheets to conversations. Children who speak languages with varied spelling traditions, such as Haitian Creole, often face institutional hurdles. In New York City, public schools frequently struggle to support immigrant students, which leads to a low graduation rate for English language learners.
To close these gaps, researchers argue that schools must value the home language. An ethnographic study on Haitian-origin students showed that linking home-based oral literacy with classroom reading dramatically improves student engagement. When parents and teachers treat spoken heritage languages as assets rather than obstacles, children develop stronger literacy skills in both their native language and English.
What You Can Do
First, parents can prioritize talk over text in early years. Engaging preschool-aged children in back-and-forth conversations and stories builds the phonetic awareness needed for future reading. Second, advocate for native-language instruction. If your child speaks a heritage language at home, seek out school programs that integrate and respect their oral vocabulary. Finally, embrace spelling variations. In many global languages, spelling variations are a natural product of history rather than mistakes. Focus on your child's communication and comprehension first.