DHH means Deaf or Hard of Hearing. In special education, teachers often use this term to refer to students who need tailored instruction and supports because they have significant hearing loss.
What does Deaf or Hard of Hearing mean under the law?
Under the federal IDEA law, the DHH population is actually split into two distinct eligibility categories, though schools often group them together in everyday language:
- Deafness: This refers to a hearing loss so severe that the child cannot process spoken language through hearing, with or without amplification, and the loss negatively impacts their school performance. In other words, even when using hearing aids, the child cannot depend on hearing to understand classroom speech.
- Hearing Impairment (Hard of Hearing): This refers to a hearing problem, permanent or changing, that interferes with a child's educational progress but is not as severe as deafness. A child in this group may use hearing aids or cochlear implants and be able to access some spoken language.
Whatever legal term applies, a child whose hearing loss creates obstacles to learning, social interaction, or communication at school has the right to an IEP and instruction designed to meet their needs.
Communication and Language Needs
The most important part of an IEP for a DHH student is the communication plan. Without accessible language input, a child will likely fall behind academically and may withdraw socially. The IEP team must explicitly address how the student will learn language and communicate, honoring the family's chosen mode.
There is no universal solution. Some DHH students use American Sign Language (ASL) exclusively and connect strongly with Deaf culture, seeing their deafness as a cultural-linguistic identity rather than a condition to fix. Others rely on cochlear implants and focused Speech-Language Pathology therapy to build spoken English and lip-reading. The school district must provide the communication supports the IEP team decides the child needs to access education.
Accommodations and Assistive Technology
Typical K–12 classrooms can be very poor listening environments. Fluorescent hum, chairs scraping, and hallway sounds often make it hard for a hard-of-hearing student to pick out the teacher's voice. For that reason, Assistive Technology and changes to the setting are essential.
Common accommodations include:
- Educational Interpreters: For students who use ASL, the district must provide a qualified sign language interpreter to shadow the student throughout the day, translating lectures and facilitating conversations with peers.
- FM Systems (Auditory Trainers): A common tool where the teacher wears a small microphone and their voice is sent straight into the student's hearing aids or to a desk speaker, reducing background classroom noise.
- Captioning: Making sure that every video, film, or digital presentation shown in class has accurate closed captions enabled.
- Preferential Seating: Placing the student close to the teacher and away from noisy air vents or open doors leading to hallways.
What parents can do
When the team writes the IEP, parents should request that a Teacher of the Deaf (TOD) join the team; regular classroom teachers typically lack the training to recognize subtleties of hearing loss, like how a child can become mentally exhausted after spending six hours lipreading or straining to hear through background noise.
Parents also need to weigh the LRE carefully. A student who is profoundly deaf and uses ASL as a primary language can feel very alone if they are the only deaf student in a typical public school even with an interpreter present. In some situations, the placement that best supports a child's social and language growth may be a specialized State School for the Deaf, where all staff and classmates use fluent signing. Families should investigate every placement option to identify the setting where their child will do best.
Key points for parents
- Under the IDEA, hearing loss is categorized as either "Deafness" or "Hearing Impairment," depending on the severity and ability to process spoken language.
- The IEP team must honor and promote the child’s main way of communicating, whether that is spoken English, American Sign Language (ASL), or a combination of both.
- Devices such as FM systems and adjustments to the classroom environment are essential to address poor acoustics.
- If ASL is the child’s language, the school district is required to provide a qualified educational sign language interpreter.
- Parents should make sure a specialist Teacher of the Deaf (TOD) takes part in creating and monitoring the IEP.
