Line Symmetry
This is a free geometry lesson on line symmetry for grades 34. It contains both teaching and varied exercises for the students.
 

1. Is the line drawn a symmetry
line for the figure? You can cut out the images and fold them along the
dashed line to check.
a.  b.  c. 
d. 
e. 
f. 
g. 
h. 
i. 

2. Draw as many different symmetry lines as you can into these shapes.
a. 
b. 
c. 
d. 
e.  
f. 
3. Write the capital letters in which you can draw a symmetry line. Draw the symmetry lines in them.
4. Draw a mirror image in the symmetry line to get a symmetrical figure.
a.  b.  c.  



5. Examining logos.
Look for logos on food products, cars, stores, magazines, and so
on. Find at least
three logos that have symmetry. Sketch them below. Answer the
questions
a. and b. for each logo.
a. Does the logo employ a
square, a rectangle, a triangle, a circle, or some other basic
geometric
figure in some way?
b. Does it have any symmetry?
This lesson is taken from Maria Miller's book Math Mammoth Early Geometry, and posted at www.HomeschoolMath.net with permission from the author. Copyright © Maria Miller.
Math Mammoth Early Geometry
A selfteaching worktext for 1st  3rd grade that covers basic shapes, right angle, symmetry, area, perimeter, and solids.
Download ($5.95). Also available as a printed copy.