The flute is a family of musical instruments in the woodwind group. Unlike woodwind instruments with reeds, a flute is an aerophone or reedless wind instrument that produces its sound from the flow of air across an opening.
Dyslexia was first identified by German doctor Oswald Berkhan in 1881. 6 years later it was given the name dyslexia by Rudolf Berlin. It comes from the Greek words âdus,â which means hard or difficult and âlexis,â which means speech or word.
The rst theories about the causes of dyslexia ranged from brain structural defects, like an inherited aplasia in one or both cerebral angular gyri as suggested by Fisher. (1910), to functional decits, like the idea of Apert (1924) and Potzl (1924) of a de-. velopmental delay in dyslexics.