Polygon and quadrilateral vocabulary anchor charts walk third graders through the prefix-based naming system for two-dimensional shapes, from tri- (triangle) through deca- (decagon), pairing each prefix with its shape name and side-and-angle count. A second chart narrows the focus to quadrilaterals, defining parallelogram, square, rectangle, rhombus, and trapezoid by their side and angle properties, and a third page presents the same five shapes in a checkbox-style comparison grid marking which properties, such as parallel sides, equal sides, and right angles, each shape has. The set is built to be printed and displayed as a wall reference during a geometry unit rather than completed by students. Vocabulary and defining characteristics are reinforced through repetition across the three chart formats rather than through practice problems.