Definition


A line that divides a figure into two
halves that are reflections of each other.
Find the line of symmetry in this
diamond.
Answer:
Find the line of symmetry on
this car.
Answer:
Find the lines of symmetry in
this hexagon.
Answer: Hexagons have many
lines of symmetry.
Find the line of symmetry in this
triangle:
Answer: This triangle has NO
lines of symmetry
Conclusion:

Shapes can have no lines of
symmetry, one line of symmetry, or
many lines of symmetry.
Lines of Symmetry Lesson
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Lines of Symmetry Lesson

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This is a lesson I created for third graders about what lines of symmetry are and I included a few activities for them to do related to that.

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Lines of Symmetry Lesson

  1. 1. Definition  A line that divides a figure into two halves that are reflections of each other.
  2. 2. Find the line of symmetry in this diamond.
  3. 3. Answer:
  4. 4. Find the line of symmetry on this car.
  5. 5. Answer:
  6. 6. Find the lines of symmetry in this hexagon.
  7. 7. Answer: Hexagons have many lines of symmetry.
  8. 8. Find the line of symmetry in this triangle:
  9. 9. Answer: This triangle has NO lines of symmetry
  10. 10. Conclusion: Shapes can have no lines of symmetry, one line of symmetry, or many lines of symmetry.
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