Nowadays, the word milestone is used to indicate that each individual have achieved a certain developmental stage. It marks the children’s achievements during early childhood, up to adolescence. Milestones can help to spot such unfamiliar movement in a child between the developmental stages. There are times that a child’s level of development can be discover by a child’s age. Nevertheless, the age of a child only delivers as a clue to his level of development since each and every individual has a own capabilities to do such activity on time. Because of this, the researchers assume that each individual with different ages are in different developmental levels. There are some situations that an individual is unable to pass a certain milestones. Developmental delays are caused by the mental disabilities and most of them are special child or autistics. They have neurodevelopmental disorder or what we call, Autism Spectrum Disorder. (Oswalt,
Nowadays, the word milestone is used to indicate that each individual have achieved a certain developmental stage. It marks the children’s achievements during early childhood, up to adolescence. Milestones can help to spot such unfamiliar movement in a child between the developmental stages. There are times that a child’s level of development can be discover by a child’s age. Nevertheless, the age of a child only delivers as a clue to his level of development since each and every individual has a own capabilities to do such activity on time. Because of this, the researchers assume that each individual with different ages are in different developmental levels. There are some situations that an individual is unable to pass a certain milestones. Developmental delays are caused by the mental disabilities and most of them are special child or autistics. They have neurodevelopmental disorder or what we call, Autism Spectrum Disorder. (Oswalt,