Cuneiform tablet: student exercise tablet; Old Babylonian; ca. 20th-16th century B.C.; Mesopotamia; Babylonian; Clay; 7.6 x 2.9 cm (3 x 1 1/8 in.); Clay-Tablets-Inscribed; This lenticular clay tablet was used to help scribes learn to write the Sumerian and Akkadian languages using the triangle-like cuneiform (literally; 'wedge-shaped') script. To learn a word or sign; the teacher would write the form on the obverse; and the student would then repeat the exercise on the reverse