Common ASL Grammar Mistakes Students Make and How Feedback Helps

Key Takeaways

Definitions

ASL grammar refers to the rules that shape meaning in American Sign Language, including word order, non-manual signals such as facial expressions, use of space, classifiers, and topic-comment structure.

Non-manual signals are the facial expressions, head movements, and body shifts that function like grammar in ASL. They are not extra gestures. They are part of the sentence itself.

Why ASL grammar feels different from other world languages

If your teen is taking American Sign Language in high school, they may be discovering that grammar works very differently in ASL than it does in spoken or written English. This is often the source of the common ASL grammar mistakes students make, especially in early and intermediate courses. A student may know the right signs for each word but still produce a sentence that feels unnatural or incorrect because ASL is not signed English.

That distinction matters in class. In many high school world languages courses, students can rely on written notes, verb charts, or translation habits. In ASL, students are learning a visual language that depends on movement, facial grammar, spatial organization, and timing. A quiz may ask them to watch a signed prompt and respond in ASL order. A class presentation may be graded not only on vocabulary but also on eye gaze, topic-comment structure, and whether yes or no questions are marked with raised eyebrows.

Teachers of ASL often see a predictable pattern. Students first focus on remembering individual signs. Then, once they have enough vocabulary, grammar issues become more visible. Parents sometimes notice this when a teen says, “I knew the signs, but I still lost points.” In many cases, the issue is not effort. It is that the course is measuring language structure, not just word recall.

This is also why feedback matters so much in ASL. A worksheet can help with gloss practice, but many grammar features need to be seen, corrected, and practiced in context. Students benefit when a teacher, tutor, or fluent signer can point out exactly what changed the meaning of a sentence and how to adjust it.

Common American Sign Language grammar errors high school students often make

Some mistakes show up again and again in high school ASL classes because students are still learning how to think in a visual language. Below are several course-specific trouble spots that often appear in homework videos, partner dialogues, receptive practice, and performance assessments.

Using English word order instead of ASL structure

One of the most common patterns is signing in straight English order. A teen may sign something like “I am going to the store tomorrow” in the same order they would say it aloud. In ASL, time markers often come first, and the sentence may be organized differently. A more natural structure might begin with TOMORROW, then move into the main idea.

This matters on class assessments because teachers are often listening with their eyes for whether the student is organizing information in ASL rather than translating word by word. When students keep English syntax, their signing may be understandable but still marked down for grammar.

Leaving out facial grammar

Parents are sometimes surprised to learn that facial expressions are not just about emotion in ASL class. They are part of grammar. For yes or no questions, students usually need raised eyebrows. For wh- questions, they often need lowered brows. For conditional ideas such as “if,” the face and body help mark the sentence clearly.

High school students often feel self-conscious here. They may sign the handshapes correctly but keep a neutral face, especially in recorded assignments. Teachers frequently comment on this because missing non-manual signals can make a sentence incomplete or confusing. Guided feedback helps students understand that they are not being asked to perform dramatically. They are being asked to use the grammar of the language.

Forgetting topic-comment structure

ASL often introduces the topic first and then comments on it. Students who are used to English sentence patterns may skip this structure. In class, this can affect storytelling, personal introductions, and descriptive tasks. For example, when discussing a class schedule or a family member, students may need to set up the topic before adding details.

When teachers model this clearly and students practice with sentence frames, accuracy improves. Without that support, teens may keep producing sentences that sound like direct English translations.

Misusing classifiers and spatial setup

As students move into more advanced ASL work, classifiers become a major source of confusion. A classifier is not just a vocabulary item. It helps represent shape, movement, placement, or how an object or person moves through space. In a classroom story about a car turning into a driveway or a person walking past a table, the student must set up space clearly and stay consistent.

This is hard for many learners because it combines memory, visual planning, and grammar at the same time. A teen may understand the story but lose points for switching referents, placing objects inconsistently, or using a classifier without clear setup. This is one area where immediate correction is especially useful.

Skipping time markers or plural information

In English, tense often appears through verb endings. In ASL, time is often established differently, sometimes at the beginning of the sentence. Students may forget to include signs such as YESTERDAY, LAST-WEEK, or NEXT-MONTH, which leaves the message incomplete. They may also miss repetition or spatial marking that helps show plural meaning.

On tests, this can lead to receptive mistakes too. A student may understand the vocabulary in a signed sentence but miss when the action happened because they were focused only on the main sign.

Why feedback is especially important in ASL class

In many subjects, a student can look at a marked paper and see what went wrong. ASL is different because much of the learning happens through performance, observation, and correction in real time. A teen may not notice that their eyebrows stayed flat during a question or that they shifted body position in a way that changed who was speaking in a dialogue.

That is why effective ASL instruction usually includes demonstration, response, correction, and repetition. Teachers often pause a student during partner work and ask them to try a sentence again with a clearer topic marker or more accurate use of space. This kind of feedback is not nitpicking. It is how students learn to make meaning more precise.

Parents may hear that their child does “fine in class” but still struggles on video submissions or expressive assessments. That can happen because ASL requires coordination of many skills at once. During live class practice, students can rely on prompts from a partner or teacher. During an independent recording, they have to manage vocabulary, grammar, facial signals, pacing, and visual clarity on their own.

Constructive feedback helps break those demands into manageable parts. Instead of saying “your signing is wrong,” a strong teacher or tutor might say, “Your vocabulary was accurate. Now let us fix the sentence order and add the facial grammar for a wh- question.” That kind of specific guidance supports progress and protects confidence.

It also encourages self-monitoring. Over time, students begin to ask themselves useful questions while practicing. Did I establish time first? Did I mark the question on my face? Did I keep the same location for each person in the dialogue? That habit of reflection is part of long-term language growth and connects well with broader self-advocacy skills that help students ask for clarification and use feedback effectively.

What this can look like in real high school ASL assignments

ASL challenges often become clearer when we look at actual course tasks. In a high school class, your teen may be asked to complete assignments such as a signed introduction, a dialogue with a classmate, a story retell, a receptive comprehension quiz, or a recorded response to a teacher prompt. Each of these highlights different grammar demands.

In a signed introduction, students often memorize vocabulary but forget sentence flow. They may sign their name, age, school year, and interests, but keep English structure throughout. A teacher might respond by modeling a more natural order and asking the student to redo just two sentences rather than the whole presentation.

In partner dialogues, role shifting can cause trouble. If two people are being discussed, the student needs to assign each person a location in signing space and stay consistent. High school learners commonly switch sides accidentally or fail to show who is speaking. This can make an otherwise strong dialogue difficult to follow.

Story retells often expose classifier issues. A student might understand a short narrative about a ball rolling off a table, a person picking it up, and then placing it on a shelf. But when retelling it, they may use unclear handshapes, skip spatial setup, or rush transitions. A teacher or tutor can slow the story down, isolate each movement, and help the student rebuild the sequence accurately.

Receptive quizzes present another challenge. Students may know signs in isolation but struggle to process them in connected signing, especially when grammar is carried by facial expression or body shift. If your teen says, “I know the words when I study, but I cannot catch them on the quiz,” they may need guided receptive practice with shorter clips, repeated viewings, and discussion of what visual clues signal grammar.

These are normal learning moments in world languages coursework, but ASL makes them more visible because the grammar is expressed on the body and face, not only through words on a page.

How parents can support ASL learning at home without needing to know ASL

You do not need to be fluent in American Sign Language to help your teen improve. What often helps most is understanding what the course is asking them to do and creating space for thoughtful practice.

One useful step is to ask your teen to explain the goal of an assignment in plain language. Are they being graded on vocabulary, grammar, classifiers, or receptive understanding? Many students lump all mistakes together and say they are “bad at ASL” when the real issue is narrower, such as forgetting non-manual signals in questions.

You can also encourage video-based self-review. After recording an assignment, your teen can watch it once for vocabulary and a second time for grammar features. Did they establish time? Did they use facial grammar? Did they stay consistent in space? This kind of review mirrors how teachers often assess performance.

Another support is helping them practice in smaller chunks. Instead of repeating a full two-minute presentation over and over, they can work on one sentence pattern at a time. For example, they might practice three yes or no questions with clear eyebrow movement, then three topic-comment sentences, then combine them.

If your teen is frustrated, it may help to remind them that visual language learning often looks uneven. A student may be strong in memorizing signs but weaker in expressive grammar, or strong in expressive signing but slower in receptive processing. That unevenness is common and does not mean they cannot succeed.

When school feedback is limited or your teen needs more repetition than class time allows, individualized support can be useful. A tutor familiar with ASL coursework can slow down the pace, model corrections clearly, and give your teen more chances to practice without the pressure of performing in front of the whole class.

When individualized support can make a meaningful difference

Some students improve with regular classroom practice alone. Others benefit from more direct guidance, especially if they are stuck in repeated patterns. If your teen keeps losing points for the same grammar issues, avoids recording assignments, or understands class examples but cannot apply them independently, extra support may help.

In one-on-one instruction, an educator can target exactly what the student needs. That might mean practicing wh- questions until facial grammar becomes automatic, rebuilding sentence order from teacher prompts, or working through classifier stories step by step. The advantage is not just more time. It is more precise time.

This can be especially helpful for high school students balancing multiple classes, extracurriculars, and performance-based assessments. ASL assignments often require planning, recording, reviewing, and re-recording. A student who is otherwise capable may still need structured support to organize practice and respond to feedback effectively.

K12 Tutoring works with families who want that kind of individualized academic support. In a course like ASL, the goal is not perfection in one session. It is steady improvement through guided practice, clear feedback, and growing independence. When students understand why a sentence works and have a chance to try it again, they usually build both skill and confidence.

Tutoring Support

If your teen is working through common grammar challenges in ASL, extra support can be a practical and encouraging next step. K12 Tutoring helps students strengthen course-specific skills through personalized instruction, guided practice, and feedback that matches what they are seeing in class. For a visual language like ASL, that can mean slowing down expressive work, clarifying teacher comments, practicing receptive skills, and building more natural signing patterns over time.

Families often find that individualized support is most helpful when it reinforces classroom learning rather than replacing it. With the right guidance, students can better understand assignment expectations, correct repeated errors, and feel more confident participating in class, completing video tasks, and preparing for quizzes or presentations.

Related Resources

• How To Build Your Child’s Confidence: A Parent’s Guide – Crimson Rise
• How High-Quality, Small-Group Tutoring Can Accelerate Learning – IES (U.S. Department of Education)
• Roles in Gifted Education: A Parent’s Guide – davidsongifted.org

Trust & Transparency Statement

Last reviewed: May 2026

This article was prepared by the K12 Tutoring education team, dedicated to helping students succeed with personalized learning support and expert guidance. K12 Tutoring content is reviewed periodically by education specialists to reflect current best practices and family feedback. Have ideas or success stories to share? Email us at [email protected].