Quadrilateral Anchor Chart Set for Geometry Vocabulary

Name polygons by number of sides using the tri-/quad-/pent- prefix system, from triangle through decagon.

Distinguish quadrilateral types (square, rectangle, rhombus, parallelogram, trapezoid) by their side and angle properties.

Compare quadrilaterals by shared properties, such as parallel sides and right angles, using the comparison grid.

Display the polygon naming chart before introducing the quadrilateral-specific chart, since the second chart assumes the prefix system has already been taught.

Use the comparison grid during a sorting or classification activity, having students explain why a shape checked for more than one property belongs to more than one category (for example, a square is also a rectangle).

Post the three chart pages together in sequence so the general quadrilateral definition on the second page connects visually with the property-by-property breakdown on the third.

Geometric vocabulary — prefix-based naming of polygons from tri- (3 sides) through deca- (10 sides).

Quadrilateral classification — students distinguish square, rectangle, rhombus, parallelogram, and trapezoid by comparing parallel sides, equal sides, and right angles.

Property comparison reading — interpreting a grid that marks which characteristics multiple quadrilateral types share.