We have been learning about shapes in math. Why are shapes important to know? Well, because they are all around us and we use them to build and design things. The shapes we learned about are (mostly) polygons.
A polygon is a closed shape with three or more straight lines. They have different names depending on how many sides they have. Here are some examples of polygons in everyday life
This toy packaging has 6 sides and 6 angles, so it is a hexagon.
This soccer ball has patches in two different shapes.
The shape right in the middle has 5 sides and 5 angles, so it is a pentagon.
All around the pentagon are shapes with 6 sides and 6 angles, so they are all hexagons.
This stop sign has 8 sides and 8 angles, so it is an octagon.
This section of shelf has 4 sides and 4 angles, so it is a quadrilateral.
(Quadrilaterals can come in lots of different shapes. To learn more about the different kinds of four-sided shapes, check out the videos that Mrs. Yollis’ class made about them.)
Hmm… This CD has no sides and no angles, so it is not a polygon. It’s a special closed shape that is very important – it’s a circle.
These buildings have a couple of different polygons. The windows and doors have 4 sides and 4 angles, so they are quadrilaterals.
The shapes that hold up the roofs have 3 sides and 3 angles, so they are triangles.
Quadrilaterals are a very common shape. Why do you think we see them so much?
Can you find other examples of shapes around your school or your house?