Oral language and reading development are deeply connected. Before students can comprehend what they read, they must first understand the language being used. Strong oral language skills help students develop vocabulary, background knowledge, sentence comprehension, and verbal reasoning—all of which contribute to reading comprehension.

While word recognition helps students identify the words on a page, oral language helps them make sense of those words. Students who have a strong language foundation are better prepared to understand increasingly complex texts, engage with academic content, and build new knowledge through reading.

This connection is one reason oral language development is considered a critical component of literacy instruction and long-term academic success.

Phonological awareness is the ability to recognize and work with the sound structure of spoken language. It includes skills such as identifying, segmenting, blending, and manipulating the individual sounds (phonemes) in words. While early language experiences with rhyme, rhythm, and oral language provide a foundation, these skills do not develop sufficiently for reading without explicit instruction.

Impact on academic achievement: As students learn to read, phonemic awareness becomes essential for connecting speech to print. To read a word like cat, a student must be able to segment it into its three phonemes /k/ /a/ /t/ and then map those sounds to corresponding letters. This process, blending sounds to read words and segmenting them to spell, is the basis of decoding and encoding.

Phonemic awareness is a critical prerequisite for developing accurate and efficient word reading. When students can segment and blend phonemes, they are better able to form connections between sounds and spellings, which supports orthographic mapping. This process enables words to become stored for automatic recognition. Without well-developed phonological awareness, these connections are fragile, making decoding slower and more effortful and limiting reading fluency and comprehension.

Impact on academic achievement:
The ability to learn phoneme-grapheme relationships depends on the broader language system already in place. When students can segment and blend sounds, they are better able to connect spoken language to print in a meaningful way. When this system is still developing, letter-sound relationships may remain isolated rather than connected, making decoding and spelling more effortful.

This also impacts orthographic mapping, the process that allows words to become instantly recognized and understood. Without strong sound-to-print connections, reading remains slower and requires more effort, which can limit fluency and access to meaning.

Semantics is how students understand word meanings and relationships between words. Over time, children begin to recognize additional sound combinations such as /t/ /ai/ /l/ and /f/ /ur/. Tail and fur do not mean the same thing as cat, but they are connected and help define it. Students with richer vocabulary have more options to draw from when decoding.

Impact on academic achievement:
Not all students have a strong storage of words to choose from. When semantic knowledge is limited, students struggle to connect words to meaning. This disrupts comprehension and weakens orthographic mapping, as words are not stored with strong meaning associations.

A limited vocabulary also restricts how students think, communicate, and engage with content. Without a wide and flexible word bank, students struggle to:

• Understand complex texts
• Express ideas clearly in writing
• Participate in academic discussions

Words are building blocks of language. As students build richer networks of meaning, they are better able to access, interpret, and communicate ideas across all subjects

Morphology is the study of word parts. These parts impact how a word can be used as well as what it means.

Impact on academic achievement:
When students understand that word parts carry meaning, they can read more efficiently and make sense of unfamiliar words. Morphology supports vocabulary growth by helping students recognize patterns across words.

Without this understanding, students rely on sound-by-sound decoding, which is slower and less efficient. They also struggle to generalize word knowledge, making it more difficult to understand new vocabulary, especially when encountering complex, multisyllabic words.

Syntax is how words are organized into meaningful sentences. As children hear language, they begin to recognize patterns in how words fit together. For example, the cat jumps sounds right, while cat something does not.

Over time, this exposure builds an internal understanding of sentence structure and important grammar rules, giving students a foundation for both comprehension and written expression.

Impact on academic achievement:
Syntactic knowledge directly supports reading fluency. Fluent reading is not a word-by-word process. Readers use their understanding of grammatical patterns to anticipate meaning and apply natural intonation as they read. Students with limited exposure to academic and authored language may read accurately but struggle to process meaning efficiently.

Strong exposure to oral language provides students with the models they need to understand how sentences work. These internalized patterns support grammar, sentence construction, and comprehension.

When exposure to structured language is limited, students lack a clear framework for how words fit together. This makes it more difficult to understand complex text and express ideas clearly in writing. As syntactic knowledge develops, students are better able to interpret meaning, construct sentences, and engage with increasingly complex academic language.

Pragmatics is how language is used based on context, relationships, and purpose. As children experience language in different situations, they begin to understand that words can carry different meanings depending on how they are used. For example, a caregiver may refer to a cat as kitty or Buster in a warm, affectionate way, while other animal terms like rat or pig may carry negative meanings. These experiences help children build a deeper understanding of how language reflects tone, intent, and social context.

Impact on academic achievement:
Pragmatic understanding allows students to move beyond literal meaning. It supports their ability to interpret tone, recognize figurative language, and adjust communication based on audience and setting.

When pragmatic skills are still developing, students may struggle to:

• Interpret sarcasm or implied meaning
• Follow nuanced or multi-step directions
• Participate effectively in discussions
• Adjust language when speaking to peers versus adults

These skills are essential for classroom learning and communication. As pragmatic knowledge develops, students are better able to engage in academic conversations, collaborate with others, and navigate the language demands of school.

Oral language provides the foundation for decoding, comprehension, and expression. From phonology to pragmatics, each component shapes how students access and use language. When these systems develop together, students are better able to read with accuracy, make sense of text, and express their thinking with clarity.

Strong literacy instruction does not start with text alone. It starts with building language. When oral language is prioritized, students gain the tools they need to access content, participate in learning, and achieve at higher levels across the curriculum.

Snowling, M. J., & Hulme, C. (2025). The Reading Is Language Model: A Theoretical Framework for Language and Reading Development and Intervention. Annual Review of Developmental Psychology, 7, 195–218. DOI: 10.1146/annurev-devpsych-111323-084821