Our SCIENTIFIC CALC-U-VUE 10-PK is perfect for teaching math hands-on! This set of 10 scientific calculators is perfect for teaching algebra, geometry and trigonometry in the classroom! These solar-powered calculators feature logarithms, scientific notation, pi, angle units and factorial functions as well as sine, cosine, tangent and their inverses. Equations can be entered left to right, and numbers rounded off. Each calculator measures 3in. x 5.5in. and has a hard plastic sliding case. Set of 10.