These people have difficulty producing speech sounds,(Developmental Articulation Disorders) whereby they may have trouble controlling their rate of speech or may lag behind in learning to make speech sounds for e.g. "Sweep" may be pronounced as "Thweep". These articulation disorders are common and are seen in at least 10 percent of children younger than 8 years. Most of the children however outgrow their problems or are successfully treated with speech therapy.

Some children may have problems expressing themselves in speech (Developmental Expressive Language Disorders). They may call objects by wrong names or are unable to answer simple questions.

Some people may have trouble understanding certain aspects of speech (Developmental Receptive Language Disorders). They may not respond to their names or are unable to follow simple directions. Their hearing is normal but they just can't make sense of certain sounds, words or sentences that they hear and may even appear inattentive. These people may also have trouble in expressing themselves.

  Dyslexia (Developmental Reading Disorder) :-

  Developmental Writing Disorder :-

  Dyscalculia (Developmental Arithmetic Disorder) :-

(includes coordination, motor skill disorders and other specific developmental disorders). Here a person may have difficulty in doing coordinative actions, difficulty to form letters or write within a defined space (dysgraphia)

  Some children with learning disorders (almost 20% ) have difficulty