The Sharp scientific calculator EL-531TH-GR is ideal for high school. With its direct algebraic input logic, you can enter fractions, roots, and formulas exactly as you would write them in your school notebook. The multiline playback function allows you to easily recall, modify, or compare individual entries. The calculator supports all the necessary scientific functions for high school, such as statistics, n-base calculations, and logical operators. It requires one AAA battery for operation.