A chart is a graphical representation of data, in which the data is represented by symbols, such as bars in a bar chart, lines in a line chart, or slices in a pie chart. A chart can represent tabular numeric data, functions or some kinds of qualitative structure and provides different info. The term chart as a graphical representation of data has multiple meanings: A data chart is a type of diagram or graph, that organizes and represents a set of numerical or qualitative data. Maps that are
Vision and learning are intimately related. In fact, experts say that roughly 80 percent of what a child learns in school is information that is presented visually. So good vision is essential for students of all ages to reach their full academic potential.
What is the outlook for children with intellectual disabilities? About 2 percent to 3 percent of children are considered intellectually disabled (formerly called mentally retarded). Their general intelligence is significantly below average, and they have difficulty adapting to their environment.