MODULE VI
FOR TEACHERS

Case Studies and Best Practices in AAC

Foundations of Augmentative and Alternative Communication (AAC)

Augmentative and Alternative Communication Technique for Inclusion (AAC-Inclusion)

1. Introduction to Case Studies and Best Practices

Augmentative and Alternative Communication (AAC) is most successful when theoretical knowledge is translated into practical application. While understanding communication systems, strategies, and assessment methods is essential, educators also need examples of how AAC can be implemented effectively in real-life educational settings.

Case studies provide opportunities to examine authentic communication situations, identify challenges, analyse interventions, and evaluate outcomes. Best practices help educators apply evidence-based approaches that promote communication, participation, inclusion, and independence.

This module presents practical examples and successful strategies that can be adapted to different educational contexts and learner profiles.

1.1 What Are Best Practices in AAC?

Best practices are teaching and intervention approaches that have been shown through research and practical experience to improve communication outcomes.

Effective AAC practices are:

• Evidence-based.
• Person-centred.
• Functional.
• Inclusive.
• Consistent across environments.
• Adaptable to individual needs.
• Focused on participation and communication competence.

Best practices should always be adapted to the individual needs, strengths, preferences, and communication goals of each AAC user.

2. Components of Successful AAC Implementation

Successful AAC implementation typically includes:

Assessment

• Identification of communication strengths and needs.
• Evaluation of communication environments.
• Selection of appropriate AAC systems.

Communication Opportunities

• Frequent opportunities to communicate.
• Natural communication situations.
• Meaningful interactions.

Communication Partner Support

• Teacher training.
• Parent involvement.
• Peer participation.

Continuous Monitoring

• Regular progress reviews.
• Goal adjustment.
• Ongoing support.

3. Case Study 1: Supporting a Student with Autism Spectrum Disorder

Student Profile

Name: Alex (fictional name)

Age: 8 years

Educational Setting: Primary School

Diagnosis: Autism Spectrum Disorder

Communication Profile:

• Uses limited verbal speech.
• Frequently communicates through gestures.
• Experiences frustration when unable to express needs.
• Avoids social interaction with peers.

Challenges Identified

Teachers observed:

• Frequent communication breakdowns.
• Limited participation during group activities.
• Difficulty requesting help.
• Challenging behaviours during transitions.

AAC Intervention

The AAC team introduced:

• Visual schedules.
• Communication boards.
• Core vocabulary symbols.
• Aided language modelling.

Teachers and parents received training on AAC strategies.

Outcomes After Six Months

Improvements included:

• Increased spontaneous communication.
• Reduction in challenging behaviours.
• Greater classroom participation.
• Improved peer interactions.
• Increased independence during routines.

Lessons Learned

Success was achieved because:

• AAC was used consistently.
• Teachers and parents collaborated.
• Communication opportunities were created daily.
• Communication attempts were always acknowledged.

4. Case Study 2: Supporting a Student with Cerebral Palsy

Student Profile

Name: Maria (fictional name)

Age: 11 years

Educational Setting: Inclusive Primary School

Diagnosis: Cerebral Palsy

Communication Profile:

• Understands spoken language.
• Limited speech intelligibility.
• Reduced fine motor control.

Challenges Identified

• Difficulty participating in classroom discussions.
• Dependence on adults for communication.
• Limited social participation.

AAC Intervention

The team selected:

• Eye-gaze communication software.
• Digital AAC device.
• Personalized vocabulary pages.

Communication partners received training on:

• Wait time.
• Prompting strategies.
• Partner-assisted communication.

Outcomes After One School Year

Maria demonstrated:

• Greater independence.
• Improved academic participation.
• Increased confidence.
• Enhanced social interaction.

Lessons Learned

The success factors included:

• Appropriate access method selection.
• Family involvement.
• Ongoing device customization.
• Peer awareness activities.

5. Case Study 3: Supporting a Student with Intellectual Disability

Student Profile

Name: Daniel (fictional name)

Age: 9 years

Educational Setting: Special Education Classroom

Diagnosis: Moderate Intellectual Disability

Communication Profile:

• Uses single words.
• Limited vocabulary.
• Difficulty expressing emotions.

Challenges Identified

• Frequent communication misunderstandings.
• Difficulty making choices.
• Limited initiation of communication.

AAC Intervention

The educational team introduced:

• Choice boards.
• Emotion symbols.
• Communication books.
• Structured communication routines.

Outcomes

After four months:

• Vocabulary increased significantly.
• Student initiated communication more frequently.
• Emotional expression improved.
• Classroom participation increased.

Lessons Learned

Consistent use of visual supports throughout the school day was essential.

6. Best Practices for Inclusive Classrooms

AAC should not be used only during therapy sessions.

AAC should be integrated into:

Classroom Instruction

Examples:

• Visual lesson schedules.
• AAC-supported questions.
• Interactive learning activities.

Group Work

Examples:

• Communication boards for group discussions.
• AAC-supported collaborative tasks.
• Peer-assisted learning.

Social Activities

Examples:

• Playground communication boards.
• AAC-supported games.
• Inclusive celebrations and events.

School-Wide Communication

Examples:

• Visual signs.
• Symbol-supported information.
• Accessible communication spaces.

7. Best Practices for Working with Families

Successful AAC implementation requires family engagement.

Recommendations

Families should:

• Have access to AAC tools at home.
• Receive practical training.
• Participate in goal setting.
• Share communication successes and challenges.

Professionals should:

• Use clear language.
• Respect family priorities.
• Provide regular feedback.
• Encourage family participation.

8. Best Practices for Working with Peers

Peers are important communication partners.

Strategies

• Teach classmates basic AAC concepts.
• Model respectful communication.
• Create cooperative learning opportunities.
• Promote inclusive classroom culture.

Benefits

Peer involvement helps:

• Increase social participation.
• Build friendships.
• Improve communication confidence.
• Reduce social isolation.

9. Common Challenges and Solutions

10. Developing an AAC Best Practice Action Plan

Educators can use the following framework:

Step 1 – Identify Needs

• What communication barriers exist?

Step 2 – Set Goals

• What communication outcomes are desired?

Step 3 – Select Strategies

• Which AAC tools and approaches will be used?

Step 4 – Implement

• How will communication opportunities be created?

Step 5 – Monitor

• How will progress be measured?

Step 6 – Review

• What adjustments are required?

Reflection Questions

1. Which case study is most similar to learners in your educational setting?
2. Which AAC strategies could be implemented immediately?
3. What barriers currently limit communication participation?
4. How can collaboration with families be strengthened?
5. Which best practices could improve inclusion in your classroom?

Practical Activity

Case Analysis Workshop

Working in small groups:

1. Select one of the presented case studies.
2. Analyse communication strengths and challenges.
3. Identify AAC strategies used.
4. Evaluate the effectiveness of interventions.
5. Propose additional supports.
6. Present recommendations to the group.

Self-Assessment Checklist

After completing this module, I can:

□ Identify successful AAC implementation practices.

□ Analyse communication challenges using case studies.

□ Select appropriate AAC strategies.

□ Apply evidence-based AAC approaches.

□ Collaborate effectively with families and professionals.

□ Promote inclusive communication environments.

□ Develop communication support plans.

□ Monitor and evaluate AAC interventions.

Key Message

Every AAC user has unique communication strengths and needs. Successful AAC implementation is achieved through individualized support, collaborative teamwork, evidence-based practices, and a commitment to creating inclusive communication opportunities in all environments.

References

American Speech-Language-Hearing Association (ASHA). (2023). Augmentative and Alternative Communication Practice Portal.

Beukelman, D. R., & Light, J. C. (2020). Augmentative and Alternative Communication: Supporting Children and Adults with Complex Communication Needs.

Light, J., & McNaughton, D. (2015). Designing AAC Research and Practice to Improve Outcomes for Individuals with Complex Communication Needs.

UNESCO (2020). Inclusive Education and Communication Accessibility Guidelines.

European Agency for Special Needs and Inclusive Education (2022). Supporting Inclusive Communication in Schools.