Augmentative and alternative communication (AAC) provides a reliable means for nonverbal or minimally verbal students to express their wants, needs, thoughts, and feelings, which significantly reduces the frustration and anxiety often associated with communication barriers.

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AAC facilitates communication by establishing a strong language base. The visual and auditory feedback from AAC tools helps students expand their vocabulary and learn sentence formation. The visual supports inherent in AAC (e.g., pictures, symbols, text) help students make connections between written words and their meanings, which is crucial for building reading and listening comprehension skills.