One in 732 newborns is born with a genetic disorder called Down Syndrome (DS). This is the most common cause of mental retardation, as there are additional chromosomes in pair 21 (Cleland, et al. 2010). Although the severity of each affected individual varies, 85% of DS patients have mild to moderate mental retardation and a few patients with DS have severe disability (Barnes et al., 2009). Studies have shown that children with DS seem to have more flaws in expressive dialogue and language than typical developing children.
However, children with Down's syndrome show some common learning including short term auditory memory (ie learning from hearing) and language and language issues. Children with Down Syndrome may learn new words, learn grammar and grammar, and follow complicated verbal instructions and stories (Alton, 1998). Therefore, a comprehensive classroom teacher believes that the most effective teaching materials for children with Down's syndrome include "relying on teaching materials" and computer-based techniques rather than worksheets and textbooks (Wolpert, 2001) . The teacher can also choose to provide a visual explanation or timeline and visually enhance all courses (for example, print words next to a picture to increase vocabulary) (Alton, 1998 )
Children with Down's syndrome often report delays in developmental and behavioral problems. Compared to children without Down's syndrome, the speech and language of the affected individual develop slower and later, and the affected individual's speech may be more difficult to understand. Behavioral problems include attention problems, obsession / obsession, and stubbornness and temper. A small portion of people with Down's syndrome is also diagnosed with autism spectrum disorder, which affects communication and social interaction.
Down syndrome is a lifelong disease. Infants and children with Down's syndrome help to improve the physical and intellectual abilities of infants and children. Most of these services focus on helping children with Down's syndrome get the full potential. These services usually include language, occupation, and physical therapy provided through the state's early intervention program. Although many children are included in regular classes, children with Down Syndrome may also need additional assistance or attention at school.