Name the Polygons
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Name the Polygons
Name the polygons by their sides: triangle, quadrilateral, pentagon, hexagon, heptagon (7 sided shape), octagon, nonagon (9 sided shape) and decagon (10 sided shape), regular and irregular. Grades 2 and 3, with a key.
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Teach it first
Naming PolygonsA teaching handout to hand out before this sheet: the rule, worked examples and common mistakes.- Skill
- 2D Shapes Worksheets
- Pages
- 1
- Last updated
- Time
- About 10 minutes
- Answer key
- Included
- Printing
- Black and white
- Related curriculum
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Name circles, triangles, squares, rectangles, hexagons and other polygons in any size and turn, count their sides and vertices, and tell what makes a shape that shape, such as three straight sides and a closed outline for a triangle. Draw the matching half of a shape, and tell when two shapes are the same size and shape.
Reviewed by Ms. Olivia Parker, Teacher. How we check worksheets
How to use this sheet
- Have the child count the sides and the corners of each shape, marking each one, before naming it.
- Look for shapes around the room after the sheet: the windows, plates and signs.
- Ask "How do you know?" for every name. The number of sides is a better reason than the look.
Common mistakes
- Thinking a triangle must point up, or a square turned on its corner is a diamond and not a square. Turning does not change a shape.
- Calling a shape a triangle when it has a curved or open side. A triangle has three straight sides that meet.
- Thinking a square is not a rectangle. A square is a rectangle with all four sides the same length.
