Language is a system of symbols and rules that is used for meaningful communication. A system of communication has to meet certain criteria in order to be considered a language: 1  A language uses symbols, which are sounds, gestures, or written characters that represent objects, actions, events, and ideas. A language uses symbols, which are sounds, gestures, or written characters that represent objects, actions, events, and ideas. 2  Symbols enable people to refer to objects that are in another place or events that occurred at a different time.
Also remember that children between the ages of 6 and 18 months can normally move up or down on their percentiles, but older children should follow their growth curve fairly closely. Answers to examples: 1) 50th percentile, 2) 10th percentile, 3) 50th percentile, 4) 75th percentile, 5) about the 15th percentile.
During a one-year growth spurt, boys and girls. can gain an average of 4.1 inches and 3.5 inches in height respectively. This spurt. typically occurs two years earlier for girls than for boys. Weight gain results from. increased muscle development in boys and body fat in girls. During this early stage of adolescence there is a sharp increase in physical growth. Coming off the childhood spurts of 10 yrs for girls and 10 Â½ yrs for boys, changes occur. in early adolescence at around age 11. Girls become taller and heavier. Their pubertal.