Assess students' ability to read and interpret basic bar, line, and pie charts across disciplines by identifying variables, axes, legends and labels; describing trends, comparisons, and proportions; estimating percentages from visuals; selecting the most appropriate chart type for a given dataset; and recognizing simple misleading features (e.g., truncated axes, unclear labels). Includes brief multiple-choice and short-answer items using examples from science, social studies, and economics.