Project – The Effectiveness of Augmentative and Alternative Communication Tools in Improving Classroom Participation Among Non-Verbal Learners at Kwara State School for Special Needs, Ilorin.

CHAPTER ONE

INTRODUCTION

TITLE: THE EFFECTIVENESS OF AUGMENTATIVE AND ALTERNATIVE COMMUNICATION TOOLS IN IMPROVING CLASSROOM PARTICIPATION AMONG NON-VERBAL LEARNERS AT KWARA STATE SCHOOL FOR SPECIAL NEEDS, ILORIN

1.1 Background to the Study

Education is an essential instrument for human development, social inclusion and the empowerment of individuals, irrespective of their physical, intellectual or communication abilities. Every learner has the right to access meaningful educational opportunities and participate actively in classroom activities. However, learners with communication difficulties often encounter barriers that limit their ability to express their thoughts, respond to questions, interact with teachers and participate in academic activities. These challenges are particularly evident among non-verbal learners who may have limited or no functional spoken language. Unlike learners who communicate verbally, non-verbal learners may require alternative means of expressing their needs, understanding instructions and demonstrating their knowledge. Consequently, the provision of appropriate communication support is necessary to ensure that such learners are not excluded from meaningful classroom experiences. The United Nations Educational, Scientific and Cultural Organization (UNESCO, 2020) emphasises that inclusive education requires the identification and removal of barriers that prevent learners from accessing education and participating fully in the learning process. This highlights the importance of adopting appropriate educational strategies and communication interventions that enable non-verbal learners to participate effectively in classroom activities.

Non-verbal learners are individuals who have significant limitations in using spoken language to communicate their thoughts, feelings, needs and responses. Such learners may include individuals with autism spectrum disorder, cerebral palsy, intellectual disabilities, developmental language disorders and other conditions that affect speech and communication. It is important to recognise that the inability to communicate through speech does not necessarily indicate an inability to understand, learn or participate in educational activities. Some non-verbal learners may understand spoken instructions but experience difficulties expressing their responses verbally, while others may require additional visual, symbolic or technological support to understand and communicate information. Beukelman and Light (2020) explain that individuals with complex communication needs require appropriate communication systems that enable them to participate in everyday activities, develop relationships and exercise their communicative rights. Similarly, the American Speech-Language-Hearing Association (ASHA, n.d.) recognises augmentative and alternative communication as an important approach to supporting individuals with complex communication needs. Therefore, the educational needs of non-verbal learners extend beyond the provision of conventional classroom instruction to include appropriate communication methods that enable them to express themselves and engage meaningfully with teachers and classmates.

Augmentative and Alternative Communication (AAC) refers to a range of methods, strategies, systems and devices used to support or replace spoken communication among individuals who experience difficulties communicating through speech. The term augmentative refers to communication methods that supplement existing speech, while alternative refers to methods used when spoken communication is absent or insufficient. AAC tools may be unaided or aided. Unaided communication involves the use of body movements, gestures, facial expressions and manual signs, while aided communication involves external materials and devices such as communication boards, picture cards, symbol charts, communication books, speech-generating devices and specialised digital applications. These tools provide learners with opportunities to communicate their needs, make choices, answer questions, request assistance and express their opinions. Beukelman and Light (2020) explain that AAC systems are designed to address the communication needs of individuals with complex communication difficulties by providing appropriate methods of message expression. Light and McNaughton (2014) further argue that communication competence involves the ability to communicate effectively across different contexts and purposes. Therefore, AAC tools represent important educational resources that can help non-verbal learners overcome communication barriers and participate more actively in classroom activities.

The effectiveness of AAC tools in educational settings can be understood through their contribution to classroom participation. Classroom participation refers to the active involvement of learners in teaching and learning activities, including responding to questions, asking questions, expressing ideas, following instructions, participating in group discussions, making choices and interacting with teachers and classmates. For non-verbal learners, participation may be limited when classroom activities depend exclusively on spoken communication. However, the introduction of appropriate AAC tools can provide alternative channels through which these learners can communicate and demonstrate their understanding. For example, a learner may use picture cards to identify objects, a communication board to answer a teacher’s question, gestures to indicate agreement or disagreement, or a speech-generating device to contribute to classroom discussions. Romski et al. (2010), in a longitudinal study involving toddlers with developmental delays, demonstrated that augmentative and alternative communication interventions could support language development rather than hinder speech development. Similarly, Schlosser and Wendt (2008), in their systematic review of AAC interventions among children with autism spectrum disorders, reported positive effects on speech production, indicating that AAC can support communication development. These findings establish the importance of providing appropriate communication interventions to improve the opportunities available to learners with limited spoken language.

Furthermore, the application of AAC tools in the classroom can promote social interaction, confidence, independence and inclusive learning among non-verbal learners. Communication is not limited to answering academic questions; it also enables learners to establish friendships, express emotions, request assistance, participate in cooperative activities and develop relationships with teachers and classmates. When learners are unable to communicate their thoughts and needs, they may experience frustration, social isolation and reduced involvement in classroom activities. However, when appropriate AAC tools are introduced, learners can communicate more effectively and participate in activities that would otherwise be difficult for them. Drager et al. (2010) explain that technological developments in AAC have expanded communication opportunities for individuals with complex communication needs, particularly through the use of speech-generating technologies and other electronic communication systems. Light and McNaughton (2014) also emphasise that communication competence involves linguistic, operational, social and strategic skills, which are necessary for successful interaction in different environments. Consequently, the effective application of AAC tools may improve not only the communication abilities of non-verbal learners but also their social participation, classroom engagement and overall educational experiences.

In Nigeria, the education of learners with special needs requires appropriate teaching strategies, specialised instructional materials and communication support systems that respond to individual learning differences. Special education institutions serve learners with different disabilities and educational needs, including those who experience significant speech and communication difficulties. However, the effectiveness of teaching and learning in such institutions may be affected when appropriate communication resources are unavailable, insufficient or inadequately utilised. The National Policy on Education recognises the importance of providing educational opportunities for individuals with special educational needs and ensuring that appropriate facilities and support services are available to promote their development (Federal Republic of Nigeria, 2013). Similarly, the United Nations Convention on the Rights of Persons with Disabilities (United Nations, 2006) emphasises the right of persons with disabilities to education and the provision of appropriate support within inclusive educational systems. These provisions demonstrate the need for Nigerian special education institutions to adopt effective communication approaches that enable non-verbal learners to participate meaningfully in classroom activities. In this regard, AAC tools can serve as important educational interventions by providing learners with alternative methods of expressing themselves, understanding classroom instructions and interacting with other members of the school community.

At the local level, Kwara State School for Special Needs, Ilorin, provides an important setting for examining the effectiveness of augmentative and alternative communication tools in improving classroom participation among non-verbal learners. Learners with communication difficulties may experience challenges in responding to teachers, participating in group activities, expressing their academic understanding and interacting with classmates when conventional verbal teaching methods dominate classroom instruction. The availability and effective utilisation of communication boards, picture exchange systems, visual schedules, symbol cards, gestures and electronic communication devices may help address these challenges. However, the effectiveness of such tools depends on their suitability to individual learners, the communication abilities of the learners, teachers’ knowledge of AAC strategies, the availability of appropriate materials and the consistency with which the tools are incorporated into classroom activities. Beukelman and Light (2020) emphasise that successful AAC intervention requires consideration of individual communication needs, environmental conditions and the participation opportunities available to users. Light and McNaughton (2014) similarly highlight the importance of developing communication competence across different social and educational situations. Therefore, this study seeks to examine the effectiveness of augmentative and alternative communication tools in improving classroom participation among non-verbal learners at Kwara State School for Special Needs, Ilorin, with particular attention to the types of AAC tools available, their application in classroom instruction, their influence on learner participation and the challenges affecting their effective utilisation.

1.2 Statement of the Problem

The ability to communicate effectively is fundamental to successful teaching and learning because it enables learners to express their thoughts, respond to questions, ask for assistance and participate in classroom activities. However, non-verbal learners often experience considerable difficulties participating in conventional classroom instruction because many teaching activities depend heavily on spoken communication. When learners cannot communicate verbally and are not provided with suitable alternative communication methods, they may find it difficult to express their understanding, make choices, respond to teachers and interact with classmates. This situation can result in limited classroom participation, reduced social interaction and difficulties demonstrating their learning abilities. Although non-verbal learners may possess the intellectual capacity to understand classroom lessons, the absence of appropriate communication support can prevent them from demonstrating their knowledge effectively. UNESCO (2020) emphasises that inclusive education requires the removal of barriers that restrict learners’ access, participation and achievement. The problem, therefore, is the possibility that communication barriers continue to limit the meaningful participation of non-verbal learners in classroom activities.

Another problem concerns the inadequate availability, accessibility and utilisation of appropriate Augmentative and Alternative Communication tools in special education settings. Although communication boards, picture cards, symbol charts, communication books, gestures and speech-generating devices can provide alternative means of communication, their effectiveness depends on whether they are available, suitable for individual learners and consistently incorporated into classroom instruction. Where these resources are insufficient or unavailable, teachers may find it difficult to identify learners’ needs, encourage responses and involve them in interactive learning activities. Furthermore, some communication tools may be unsuitable for particular learners because of differences in their cognitive abilities, motor skills, visual perception and communication requirements. Beukelman and Light (2020) explain that AAC intervention must be tailored to the communication needs and abilities of individual users. Therefore, the challenge is not simply the provision of communication materials but ensuring that appropriate AAC tools are available and effectively used to improve classroom participation among non-verbal learners.

Furthermore, the effectiveness of AAC tools may be affected by teachers’ knowledge, professional training and ability to integrate communication strategies into classroom activities. Teachers in special education institutions are expected to understand the communication needs of their learners and identify appropriate methods of supporting their participation. However, inadequate training, limited technical knowledge, insufficient instructional resources and the absence of continuous professional development may affect the effective application of AAC tools. In situations where teachers do not understand how to operate communication devices, interpret picture symbols or encourage learners to use communication boards, the potential benefits of these tools may not be fully realised. Light and McNaughton (2014) explain that communication competence involves linguistic, operational, social and strategic skills, as well as environmental support. Similarly, the systematic review by Kent-Walsh, Binger and Hasham (2010) highlights the importance of communication partner instruction in supporting the effective use of AAC. This suggests that the success of AAC interventions depends not only on the tools themselves but also on the competence and commitment of teachers and other communication partners.

Although existing studies have established the potential of augmentative and alternative communication interventions to improve communication among individuals with complex communication needs, there remains a need to establish how effectively these tools improve actual classroom participation among non-verbal learners at Kwara State School for Special Needs, Ilorin. For instance, Romski et al. (2010) demonstrated that augmented language interventions improved communication and vocabulary outcomes among toddlers with developmental delays, while Schlosser and Wendt (2008) established that AAC interventions did not impede speech development among children with autism. However, these findings do not directly establish the effectiveness of different AAC tools in improving classroom participation within the specific setting of this study. Important questions remain concerning the types of AAC tools available, their frequency of use, their influence on learners’ responses and interaction during lessons, and the challenges teachers encounter when applying them. Consequently, this study seeks to investigate the effectiveness of augmentative and alternative communication tools in improving classroom participation among non-verbal learners at Kwara State School for Special Needs, Ilorin.

1.3 Objectives of the Study

The main objective of this study is to examine the effectiveness of augmentative and alternative communication tools in improving classroom participation among non-verbal learners at Kwara State School for Special Needs, Ilorin.

The specific objectives are to:

1. Identify the types of augmentative and alternative communication tools available for non-verbal learners at Kwara State School for Special Needs, Ilorin.

2. Examine the extent to which augmentative and alternative communication tools are utilised by teachers in supporting classroom participation among non-verbal learners.

3. Determine the influence of augmentative and alternative communication tools on learners’ classroom interaction, responses and engagement in teaching and learning activities.

4. Identify the challenges affecting the effective utilisation of augmentative and alternative communication tools in improving classroom participation among non-verbal learners.

1.4 Research Questions

The following research questions are formulated to guide the study:

1. What types of augmentative and alternative communication tools are available for non-verbal learners at Kwara State School for Special Needs, Ilorin?

2. To what extent are augmentative and alternative communication tools utilised by teachers in supporting classroom participation among non-verbal learners?

3. How do augmentative and alternative communication tools influence learners’ classroom interaction, responses and engagement in teaching and learning activities?

4. What are the challenges affecting the effective utilisation of augmentative and alternative communication tools in improving classroom participation among non-verbal learners?

1.5 Research Hypothesis

The following null hypothesis will be tested at a 0.05 level of significance:

H₀: There is no significant relationship between the utilisation of augmentative and alternative communication tools and classroom participation among non-verbal learners at Kwara State School for Special Needs, Ilorin.

1.6 Significance of the Study

This study is expected to be significant to non-verbal learners, teachers, school administrators, parents and guardians, special education professionals, government and educational policymakers, and future researchers.

Non-verbal Learners: The findings of this study will help improve understanding of the importance of AAC tools in supporting communication and classroom participation among non-verbal learners. The study may encourage the adoption of appropriate communication methods that enable learners to express their needs, answer questions, make choices and participate in classroom activities. It may also contribute to improved confidence, independence, social interaction and educational experiences among the learners.

Teachers: The study will provide teachers with useful information on the importance of incorporating augmentative and alternative communication tools into classroom instruction. It will help teachers understand how communication boards, picture cards, gestures, symbol charts and electronic communication devices can support teaching and learning. The findings may also encourage teachers to improve their knowledge and skills in selecting and applying appropriate communication strategies for learners with different communication needs.

School Administrators: The findings will assist the management of Kwara State School for Special Needs, Ilorin, in understanding the importance of providing adequate communication resources for non-verbal learners. It may guide decisions concerning the procurement of AAC materials, improvement of classroom facilities, provision of teacher training and development of appropriate instructional programmes.

Parents and Guardians: The study will help parents and guardians appreciate the importance of alternative communication methods in supporting the development of children with communication difficulties. It may encourage them to reinforce the use of AAC tools at home and maintain consistent communication practices between the home and school environments.

Special Education Professionals: The study will provide useful information for special educators, speech-language therapists and other professionals involved in supporting learners with complex communication needs. It may assist them in understanding the relationship between appropriate AAC interventions and classroom participation, thereby encouraging the development of individualised communication support strategies.

Government and Educational Policymakers: The findings may provide useful information to government agencies and policymakers responsible for special education. It may encourage the formulation of policies that support the provision of AAC tools, specialised instructional materials, teacher training and other resources required to improve communication and educational participation among learners with disabilities.

Researchers and Future Scholars: The study will contribute to existing literature on augmentative and alternative communication, special education and classroom participation. It may serve as a reference material for future researchers interested in communication interventions, inclusive education and the educational experiences of non-verbal learners, particularly within Nigerian special education institutions.

1.7 Scope of the Study

This study focuses on the effectiveness of augmentative and alternative communication tools in improving classroom participation among non-verbal learners at Kwara State School for Special Needs, Ilorin, Kwara State.

Geographically, the study is restricted to Kwara State School for Special Needs, Ilorin. It will cover non-verbal learners and relevant teachers involved in their educational activities within the school.

Thematically, the study examines the types of augmentative and alternative communication tools available, the extent to which teachers utilise these tools, their influence on classroom interaction, responses and engagement, and the challenges affecting their effective application.

The communication tools considered include communication boards, picture exchange systems, picture cards, symbol charts, communication books, gestures, visual schedules, speech-generating devices and other relevant communication technologies.

Classroom participation will be examined in terms of learners’ ability to respond to teachers, ask and answer questions, express their needs, make choices, interact with classmates and participate in individual and group learning activities.

1.8 Operational Definition of Terms

The following terms are defined according to their usage in this study.

Augmentative and Alternative Communication (AAC): This refers to a collection of communication methods, strategies, tools and devices used to supplement or replace spoken communication among individuals who experience difficulties communicating through speech.

Augmentative Communication: This refers to communication methods used to support or supplement an individual’s existing speech or communication abilities.

Alternative Communication: This refers to communication methods used as substitutes for spoken language when an individual cannot communicate effectively through speech.

AAC Tools: These are the materials, devices and systems used to support communication among individuals with speech and communication difficulties. They include communication boards, picture cards, symbol charts, gestures, communication books and speech-generating devices.

Classroom Participation: This refers to the active involvement of learners in teaching and learning activities, including responding to questions, expressing ideas, following instructions, making choices and interacting with teachers and classmates.

Non-Verbal Learners: These refer to learners who have limited or no functional spoken language and therefore rely on alternative methods of communication to express their needs, thoughts, feelings and responses.

Communication Board: This is a visual communication aid containing pictures, symbols, letters or words that learners can point to or select to express their thoughts, needs and responses.

Picture Exchange Communication System (PECS): This is a structured communication approach through which individuals use pictures or symbols to communicate requests, choices, information and other messages.

Speech-Generating Devices: These are electronic communication devices that produce spoken messages when a user selects pictures, symbols, letters or programmed words.

Communication Difficulties: These refer to challenges experienced by individuals in understanding, expressing or exchanging information with other people through spoken or alternative communication methods.

Special Needs Education: This refers to educational provision designed to meet the individual learning, developmental and communication needs of learners with disabilities or other special educational needs.

Project – The Effectiveness of Augmentative and Alternative Communication Tools in Improving Classroom Participation Among Non-Verbal Learners at Kwara State School for Special Needs, Ilorin.