Learning Learning Disabilities Disabilities According to the National Advisory Committee on According to the National Advisory Committee on Handicapped Children in 1967, a learning Handicapped Children in 1967, a learning disability is a “disorder of one or more of the disability is a “disorder of one or more of the basic psychological processes involved in basic psychological processes involved in understanding or in using language, spoken or understanding or in using language, spoken or written, which may manifest itself as an written, which may manifest itself as an imperfect imperfect ability ability to listen, think, speak, read, write, to listen, think, speak, read, write, spell or do mathematical calculations. spell or do mathematical calculations.
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Learning Disabilities According to the National Advisory Committee on Handicapped Children in 1967, a learning disability is a “disorder of one or more.
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Learning DisabilitiesLearning DisabilitiesLearning DisabilitiesLearning DisabilitiesAccording to the National Advisory Committee on According to the National Advisory Committee on
Handicapped Children in 1967, a learning disability is a Handicapped Children in 1967, a learning disability is a “disorder of one or more of the basic psychological “disorder of one or more of the basic psychological
processes involved in understanding or in using processes involved in understanding or in using language, spoken or written, which may manifest itself language, spoken or written, which may manifest itself
as an as an imperfect abilityimperfect ability to listen, think, speak, read, write, to listen, think, speak, read, write, spell or do mathematical calculations. spell or do mathematical calculations.
In 1987, the Interagency Committee on Learning Disabilities defined learning disabilities as “a generic term that refers to a heterogeneous group of disorders manifested by significant difficulties in the acquisition and use of listening, speaking, reading, writing, reasoning, or mathematical abilities. These disorders are intrinsic to the individual and presumed to be due to central nervous dysfunction. Even though a learning disability may occur concomitantly with other handicapping conditions (e.g., sensory impairment, mental retardation, social and emotional disturbance: or environmental influences (e.g., cultural differences, insufficient or inappropriate instruction, psychogenic factors), it is not the direct result of those conditions or influences.”
Learning Disabilities: Statistics
• Affects 1 in 7 people (14%)• Affects children and adults• Range from relatively mild to severe• Often runs in families• Are not cured and do not go away, but
individuals can learn to compensate for and even overcome areas of weakness.
Learning Disabilities: Statistics
• 2.3 million students currently receive special education services for LD in the U.S. (5% of all school-aged children in public schools)
• Approximately 85% of all LD individuals have difficulty with READING.
Learning Disabilities• One of the most consistent features of
LDs is unevenness in development. These differences are most pronounced in preschool and school-aged children with LD.
Auditory vs. Vision• About 80% of learning disabilities
are associated with auditory processing deficits while about 20% are associated with visual processing deficits.
Visual processing deficits resulting in classroom difficulties
• An child with LD may have visual information processing deficits.
• Poor laterality and directionality– Difficulties with letters, spelling, and reading– Difficulty with left-right concepts– Makes consistent reading and spelling errors
including letter reversals (b/d, p/q), inversions (m/w), transpositions (felt/left), and substitutions (house/home)
– Transposes number sequences & confuses arithmetic signs (+,-,x,/,=)
• Confuses likenesses and differences• Mistakes words with similar beginnings
or ending• Difficulties with alphabet recognition
Visual processing deficits resulting in classroom
difficulties
– Visual figure-ground• Difficulty completing work• Difficulty discriminating relevant from irrelevant• Works slowly compared to peers
– Visual closure• Ignores details of visual tasks
– Visual memory and sequencing• Poor spelling skills• Difficulty with math concepts• Difficulty visualizing what is read• Poor recall of visually presented tasks
Visual processing deficits resulting in classroom
difficulties
• Visual-motor integration problems cause– Difficulty completing written work in
allotted time– Poor spacing and inability to stay on
lines– Poor writing– Difficulty producing answers on paper
Visual processing deficits resulting in classroom
difficulties
• Auditory-visual integration– Poor spelling ability– Difficulty learning to read
phonetically– Difficulty relating symbols to their