4 Effective Grammar Strategies for Speech Therapy

Grammar skills form the backbone of effective communication, and strengthening them is essential. Many of the students we support, including those with developmental language disorder, hearing impairments, or complex communication needs, struggle with syntax and morphology. This directly impacts academic success and everyday interactions. Grammar is critical for helping students express themselves clearly across speaking, listening, reading, and writing. Our role as clinicians is to help them develop flexible, functional language skills so they can communicate confidently in conversation, the classroom, and writing.

The following grammar intervention strategies can be used across age ranges, from preschoolers just beginning to develop sentence structure to high-school students refining more advanced language skills.

Strategies to Teach Grammar Skills

Modeling with Recasts

Modeling with recasts is one of the most powerful and naturalistic grammar intervention techniques. When a student produces an utterance with a grammatical error, the clinician repeats the sentence back using the correct grammar while keeping the original meaning intact.

For example, if a child says, “Him go store,” you might respond, “Yes, he is going to the store.” The goal isn’t to overtly correct the student but to provide an immediate, accurately modeled version of their idea.

Recasts can be woven into any therapy activity – play-based sessions, picture description, conversational practice, or structured tasks. They expose students to correct grammar forms in a way that feels natural and non-disruptive. Over time, repeated exposure to targeted structures supports internalization and increases the likelihood of producing these forms independently.

Implicit Instruction

Implicit instruction exposes students to correct grammatical forms without directly teaching the underlying rules. Modeling and recasting fall under this umbrella because they provide students with accurate examples through natural input. For instance, during a pretend-play session, you might repeatedly highlight a target morpheme. Emphasize “He is jumping!” or “She is cooking dinner.”, without stopping to explain how present-progressive verbs work.

Implicit instruction is especially beneficial for younger learners or for students who become frustrated with more structured teaching. It ensures students receive high-quality input while staying engaged in play or conversation.

SLPs and SLPAs can combine explicit and implicit instruction to create a comprehensive approach. For example, when teaching regular past tense, you might begin with explicit instruction about the -ed endings and how they change a verb to show something has already happened. Later, during a less structured activity, you can implicitly support the target by naturally recasting: Child: “He jump.” → SLP: “Yes, he jumped.”

Explicit, Metalinguistic Instruction

Explicit instruction involves intentionally teaching grammar rules and structures using clear explanations and guided practice. This approach is often used during structured activities to introduce a form, explain how it works, and provide students with opportunities to practice with immediate feedback.

For example, you may teach that regular past-tense verbs require an -ed ending, then have students sort examples, complete sentence frames, or identify verb errors in short texts.

A metalinguistic approach encourages students to think about language more analytically. You might say, “This is a verb. What tense is it?” or guide them through identifying errors such as, “Let’s look at this sentence: ‘The boy run fast.’ What’s wrong with the verb?” Helping students talk about language increases their awareness and strengthens their ability to edit their own work.

Explicit instruction is most effective when paired with naturalistic practice. After teaching a rule, build in opportunities during conversation, reading activities, or writing tasks where the student can apply the targeted structure in meaningful ways.

Sentence Combining

Sentence combining is a research-supported strategy, highlighted by Nippold (2009). It helps students build more complex syntax by merging two or more simple ideas into a single, well-structured sentence. This approach is particularly effective for older students who need to improve written expression, reading comprehension, or expressive language at the sentence level.

During a session, you might present two related sentences, such as “She was late. She missed the bus,” and guide the student in combining them into “She was late because she missed the bus.” Students learn how conjunctions, clauses, and modifiers help express relationships between ideas. Over time, sentence combining strengthens grammatical flexibility, increases syntactic complexity, and supports success in academic writing.

Use sentence combining for a wide range of sentence types. Students can combine simple sentences using coordinating conjunctions to form compound sentences. They can use subordinating conjunctions to create more complex structures that express time, cause/effect, or contrast. It’s also effective for teaching relative clauses, adverbial clauses, and adding detail through prepositional or participial phrases.

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Free Grammar Strategies List

If you’re looking for more evidence-based grammar intervention ideas, be sure to grab my free two-page list of 10 grammar strategies. Each strategy is paired with practical examples you can use right away. These strategies work well for learners from preschool through high school. They can easily be incorporated into therapy sessions, literacy activities, or classroom collaboration.

More on this topic:

• Teaching Grammar in Speech Therapy
• Grammar Activities for Speech Therapy
  
  

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