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Grade 3 Math Β· World 9: Polygon Plaza Β· Level 80
Quadrilaterals
Name squares, rectangles, rhombuses, parallelograms, trapezoids, and kites.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 80
- Quadrilaterals have 4 sides. The marks tell us about them: a little square is a right angle, ticks show sides of the same length, and arrows show parallel sides.
- A square has 4 right angles and 4 sides the same length. A rectangle has 4 right angles, and opposite sides the same length.
- A rhombus has 4 sides the same length, leaning over. A parallelogram has 2 pairs of parallel sides.
- A trapezoid has at least 1 pair of parallel sides. A kite has 2 pairs of equal sides next to each other.
Georgia's K-12 Mathematics Standards:
- 3.GSR.6.2 β Classify, compare, and contrast polygons, with a focus on quadrilaterals, based on properties. Analyze specific 3-dimensional figures to identify and describe quadrilaterals as faces of these figures.