How does explicit instruction in syntax contribute to literacy development?

• A. It has no impact on reading comprehension.
• B. It reduces vocabulary growth.
• C. It slows language development.
• D. It helps students understand sentence structure, improve writing clarity, and enhance reading comprehension.

Answer: (D)

Explicit instruction in syntax gives students a clear map of how sentences are built. By modeling how subjects and verbs join, how phrases and clauses relate, and how punctuation signals meaning, teachers help students recognize how sentence structure affects what a sentence says. This understanding makes decoding easier—students can parse complex sentences and grasp relationships between ideas more quickly. It also supports encoding: when students write, they can choose sentence types, vary structure, and place parts of speech in ways that communicate clearly.

Because students see how order and grammar shape meaning, they write with greater clarity and read with deeper comprehension. For example, knowing how dependent and independent clauses connect helps avoid ambiguous or incomplete sentences and clarifies cause-and-effect relationships in text. This is why explicit syntax instruction positively impacts both writing and reading.

The other statements don’t fit because explicit syntax instruction does influence literacy development, and it does not inherently slow language growth or reduce vocabulary; rather, it supports broader language growth by making how language works more understandable.