Symmetry is another geometric
property that many objects in nature seem to have.
Line
of symmetry is the place where the object can be folded to get
equal parts.
Leaves
tend to have what is called
bilateral symmetry. This means that there is
a line
(either real or imaginary)
that divides the leaf into two parts,
which are mirror images of each other.
Animals of every
shape and size can display bilateral, or mirror images of themselves.
Look at the
butterfly below. The line of
symmetry shows you where you can fold the butterfly in half to
get 2 equal parts.
Symmetry
is something that
we find everywhere around us.
In nature, one can see examples of symmetry in
snowflakes, flowers, animals, fish, reptiles, faces, and reflections on water.
Examples: 
The
stain glass is symmetrical.
Wallpaper
border is symmetrical.
To determine whether or
not something is symmetrical, fold it in half.
If each side
has the same size, shape, and details,
then it is
symmetrical.
If each side of the figure
does not have
the same size, shape, and details,
then it is
not symmetrical. 

Click on
the symmetrical pattern for practice.

Remember:
Symmetrical: Same size, shape,
and detail
on both sides.


