Development and Characteristics of Learners · 10 min read
Development and Characteristics of Students with Disabilities
Human Development Foundations
Human development proceeds through predictable stages across multiple domains. Physical development encompasses gross and fine motor skills, sensory development, and neurological maturation. Cognitive development involves the acquisition of thinking, reasoning, and problem-solving abilities. Social-emotional development includes the formation of relationships, emotional regulation, and self-concept. Language development encompasses receptive and expressive communication skills.
Development follows general principles that apply across domains. Development proceeds from simple to complex, with basic skills forming the foundation for more advanced abilities. Development moves from general to specific, with broad movements refining into precise actions. Development follows a cephalocaudal pattern, proceeding from head to toe, and a proximodistal pattern, moving from the center of the body outward. Individual variation exists within typical developmental ranges, and development in one domain influences development in others.
Piaget's cognitive development theory identifies four stages. The sensorimotor stage spans birth to age two, during which infants learn through sensory experiences and motor actions. Object permanence develops during this stage. The preoperational stage covers ages two to seven, characterized by symbolic thinking, egocentrism, and centration. The concrete operational stage spans ages seven to eleven, when children develop logical thinking about concrete objects and understand conservation. The formal operational stage begins around age eleven, marked by abstract reasoning and hypothetical thinking.
Vygotsky's sociocultural theory emphasizes the role of social interaction in cognitive development. The zone of proximal development represents the difference between what a learner can do independently and what they can achieve with guidance. Scaffolding involves providing temporary support that is gradually removed as competence increases. Language serves as a tool for thought, and learning occurs through social interaction before becoming internalized.
Erikson's psychosocial development theory identifies eight stages across the lifespan. Trust versus mistrust occurs during infancy. Autonomy versus shame and doubt characterizes toddlerhood. Initiative versus guilt emerges during the preschool years. Industry versus inferiority develops during elementary school. Identity versus role confusion dominates adolescence. These stages influence how students approach learning and relationships.
Bronfenbrenner's ecological systems theory describes nested environmental influences on development. The microsystem includes immediate environments such as family, school, and peers. The mesosystem encompasses interactions between microsystems. The exosystem involves settings that indirectly affect the child, such as parent workplaces. The macrosystem includes cultural values and social policies. The chronosystem addresses changes over time.
Characteristics of High-Incidence Disabilities
Specific learning disabilities represent the largest category of students receiving special education services. Learning disabilities involve a disorder in one or more basic psychological processes involved in understanding or using language, spoken or written. Students may have difficulty with listening, thinking, speaking, reading, writing, spelling, or mathematical calculations. Learning disabilities are not primarily caused by visual, hearing, or motor disabilities; intellectual disability; emotional disturbance; or environmental, cultural, or economic disadvantage.
Dyslexia is a language-based learning disability affecting reading. Characteristics include difficulty with phonemic awareness, phonological processing, decoding, word recognition, fluency, and spelling. Students may read slowly and laboriously, confuse similar-looking words, and struggle with reading comprehension due to decoding difficulties. Dyslexia is neurobiological in origin and tends to run in families.
Dysgraphia affects written expression. Students may have difficulty with handwriting, spelling, and organizing thoughts on paper. Characteristics include illegible handwriting, inconsistent spacing, difficulty copying, slow writing speed, and trouble translating thoughts into written form. Fine motor difficulties may contribute to handwriting problems.
Dyscalculia affects mathematical ability. Students may struggle with number sense, math facts, calculation procedures, and mathematical reasoning. Characteristics include difficulty understanding quantity, counting, recognizing patterns, telling time, and applying mathematical concepts to real-world situations.
Intellectual disability is characterized by significant limitations in intellectual functioning and adaptive behavior. Intellectual functioning refers to general mental capacity, including reasoning, problem-solving, and learning. Adaptive behavior includes conceptual, social, and practical skills needed for everyday life. Onset occurs during the developmental period. Mild intellectual disability constitutes approximately 85 percent of cases, with IQ scores typically between 50-55 and 70-75.
Students with mild intellectual disability can acquire academic skills approximately to the sixth-grade level. They can achieve social and vocational adequacy with appropriate support. They benefit from concrete, hands-on instruction with multiple opportunities for practice. They may need explicit instruction in skills that peers acquire incidentally. Transition planning focusing on employment, independent living, and community participation is essential.
Emotional and behavioral disorders involve an inability to learn that cannot be explained by intellectual, sensory, or health factors; an inability to build or maintain satisfactory interpersonal relationships; inappropriate types of behavior or feelings under normal circumstances; a general pervasive mood of unhappiness or depression; or a tendency to develop physical symptoms or fears associated with personal or school problems. These characteristics must be exhibited over a long period of time and to a marked degree, adversely affecting educational performance.
Internalizing behaviors include anxiety, depression, social withdrawal, and somatic complaints. Students may appear sad, worried, or fearful. They may avoid social situations and have few peer relationships. Internalizing disorders are often underidentified because students do not disrupt classroom functioning.
Externalizing behaviors include aggression, defiance, disruption, and hyperactivity. Students may have difficulty following rules, controlling impulses, and managing anger. They may engage in verbal or physical aggression and have frequent conflicts with peers and adults. Externalizing behaviors are more readily identified because they affect classroom functioning.
Attention-deficit/hyperactivity disorder involves a persistent pattern of inattention and/or hyperactivity-impulsivity that interferes with functioning or development. The predominantly inattentive presentation involves difficulty sustaining attention, following through on instructions, organizing tasks, and avoiding distractions. The predominantly hyperactive-impulsive presentation involves fidgeting, difficulty remaining seated, excessive talking, and difficulty waiting. The combined presentation includes symptoms of both inattention and hyperactivity-impulsivity.
Executive function deficits are common in ADHD and affect working memory, cognitive flexibility, and inhibitory control. Students may have difficulty planning, organizing, prioritizing, initiating tasks, monitoring performance, and regulating emotions. These deficits affect academic performance across subject areas.
Autism spectrum disorder is characterized by persistent deficits in social communication and social interaction across multiple contexts, along with restricted, repetitive patterns of behavior, interests, or activities. Social communication deficits may include difficulty with social-emotional reciprocity, nonverbal communication, and developing and maintaining relationships. Restricted and repetitive behaviors may include stereotyped movements, insistence on sameness, highly restricted interests, and sensory sensitivities.
Students with autism spectrum disorder vary widely in their abilities and support needs. Some students have intellectual disability while others have average or above-average intelligence. Language abilities range from nonverbal to highly verbal with pragmatic difficulties. Students may have strengths in visual processing, attention to detail, and systematic thinking. They often benefit from structured environments, visual supports, and explicit social skills instruction.
Speech and language impairments involve communication disorders that adversely affect educational performance. Articulation disorders involve difficulty producing speech sounds correctly. Fluency disorders, such as stuttering, involve interruptions in the flow of speech. Voice disorders involve abnormalities in pitch, loudness, or quality. Language disorders involve difficulties with the form, content, or use of language.
Expressive language disorders affect the ability to communicate thoughts and ideas through speech or writing. Students may have limited vocabulary, difficulty formulating sentences, and trouble organizing discourse. Receptive language disorders affect the ability to understand spoken or written language. Students may have difficulty following directions, understanding questions, and comprehending text. Mixed receptive-expressive language disorders involve difficulties in both areas.
Other health impairments include chronic or acute health problems that adversely affect educational performance. Examples include asthma, diabetes, epilepsy, heart conditions, hemophilia, lead poisoning, leukemia, nephritis, rheumatic fever, sickle cell anemia, and Tourette syndrome. Students may have limited strength, vitality, or alertness due to their health condition. ADHD is often classified under other health impairments for special education purposes.
Impact of Disabilities on Learning
Cognitive processing differences affect how students acquire, store, and retrieve information. Working memory limitations make it difficult to hold information in mind while manipulating it. Processing speed deficits mean students require more time to complete tasks. Attention difficulties interfere with focusing on relevant information and ignoring distractions.
Memory deficits affect both short-term and long-term retention. Students may have difficulty encoding information initially, consolidating it for storage, or retrieving it when needed. Explicit memory involving conscious recall may be more affected than implicit memory involving automatic processes.
Executive function deficits affect self-regulation and goal-directed behavior. Students may have difficulty planning and organizing, initiating and completing tasks, monitoring their own performance, shifting between tasks, and controlling impulses. These deficits affect academic performance, social interactions, and daily living skills.
Metacognitive difficulties affect awareness and control of one's own thinking processes. Students may have difficulty recognizing when they do not understand, selecting appropriate strategies, and monitoring strategy effectiveness. Explicit instruction in metacognitive strategies is often necessary.
Language processing difficulties affect academic learning across subject areas. Students may have difficulty understanding verbal explanations, following multistep directions, and expressing their knowledge verbally. Reading comprehension and written expression are particularly affected.
Social cognition deficits affect the ability to understand social situations and respond appropriately. Students may have difficulty reading facial expressions and body language, understanding others' perspectives, and interpreting social cues. These deficits lead to difficulties with peer relationships and social problem-solving.
Academic achievement is affected across subject areas. Reading difficulties may involve decoding, fluency, vocabulary, or comprehension. Writing difficulties may involve handwriting, spelling, sentence construction, or composition. Mathematics difficulties may involve number sense, calculation, or problem-solving. Content area learning is affected when students cannot access grade-level text.
Motivation and self-concept are often affected by repeated academic failure. Students may develop learned helplessness, believing that their efforts will not lead to success. They may have negative academic self-concept and low self-efficacy. Anxiety about academic tasks may further impair performance. Building motivation requires success experiences and attribution retraining.
Factors Affecting Development
Biological factors influence development and disability. Genetic factors contribute to many disabilities, including learning disabilities, intellectual disability, autism spectrum disorder, and ADHD. Prenatal factors such as maternal substance use, infections, and inadequate nutrition can affect development. Perinatal factors including prematurity, low birth weight, and birth complications are risk factors. Postnatal factors such as traumatic brain injury, illness, and exposure to toxins can cause or contribute to disabilities.
Neurological differences are associated with various disabilities. Brain structure and function differences have been identified in learning disabilities, ADHD, and autism spectrum disorder. Neuroplasticity means the brain can change in response to experience and intervention. Understanding neurological bases of disabilities informs intervention approaches.
Environmental factors significantly influence development. Poverty is associated with increased risk for developmental delays and disabilities. Limited access to healthcare, nutrition, and early intervention affects outcomes. Environmental toxins such as lead contribute to developmental problems. Adverse childhood experiences including abuse, neglect, and household dysfunction affect development.
Family factors affect development and educational outcomes. Parenting practices influence cognitive, social, and emotional development. Family stress, including financial strain and parental mental health, affects children. Family involvement in education is associated with better outcomes. Cultural values and practices shape development and learning.
Educational factors influence outcomes for students with disabilities. Quality of instruction significantly affects achievement. Early identification and intervention improve outcomes. Access to evidence-based practices is essential. Teacher preparation and professional development affect instruction quality.
Cultural and linguistic factors affect identification and education. Cultural differences in child-rearing practices and expectations influence development. English learners may be over- or under-identified for special education. Assessment must distinguish language differences from language disorders. Instruction should be culturally responsive and build on students' backgrounds.
Protective factors promote resilience despite risk. Individual factors include cognitive ability, social competence, and positive temperament. Family factors include supportive relationships and parental involvement. Community factors include quality schools and access to services. Intervention can strengthen protective factors and reduce risk.
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