Accessing Communication Boards and Devices
Students need proper positioning to access communication aids effectively. Devices like slant boards, lap trays, or adjustable desks may be used. Pointing tools such as head pointers, mouth sticks, or light beams support symbol selection. Access depends on students’ physical, sensory, and cognitive skills, with occupational therapists assisting setup.
Direct Select
Direct select involves students pointing or touching symbols directly. It’s the fastest and simplest method, preferred for those with fine and gross motor abilities. This system avoids intermediate steps, making it efficient for communication.
Scanning
Scanning is an indirect access method where students use switches to choose symbols. Types include automatic, inverse, step, and direct scanning, tailored to cognitive and physical abilities. Choices may be highlighted visually or auditorily, with patterns like linear or circular arrangements.
Encoding
Encoding uses codes to represent messages by combining letters, numbers, symbols, or colors. Systems like Morse code or abbreviation expansion (e.g., “EMD” = “I want McDonald’s”) allow faster communication. This requires consistent motor or cognitive control and is suited for students with reliable skillsets.
Vocabulary Selection
Vocabulary for physical and health needs depends on the student’s cognitive and physical abilities. Selection should be individualized rather than from standard lists, making communication more efficient. Words should help students express needs or instruct others in procedures, using a structured step-by-step process.
Vocabulary to Express Health and Physical Needs
This includes both general words (“hurt,” “sick”) and more specific terms (“headache,” “nausea”). Tools like pain gauges or body charts help students indicate severity and location of pain. Additional vocabulary supports problem-solving actions such as requesting medication or calling a parent.
Vocabulary for Performing Health Care Procedures
Students with physical disabilities may not perform tasks themselves but can direct others. Vocabulary should include names of supplies, steps of procedures, and instructions. This gives students independence and control, even when relying on trained or less-trained personnel for assistance.
Instructional Strategies for AAC (Augmentative and Alternative Communication)
Students requiring AAC must be systematically taught to use it in daily routines. Communication opportunities should be frequent and embedded in activities like snack time or requesting mobility. Consistent responses to all attempts are essential, ensuring students learn to use devices effectively across varied settings.