In this unit plan, students are introduced to the characteristics and properties of the following geometric concepts: lines, segments, rays, angles, skew lines, parallel lines and perpendicular lin
Iran, early Islamic period, 8th - 10th century
bone, incised, Overall: 0.40 x 2.30 x 2.30 cm (1/8 x 7/8 x 7/8 inches). Gift of Edward Gans 1963.637
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