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MathsProject
.Symmetry.Rotation.Translation.Reflection
Symmetry
What is line of    symmetry• A line on which a figure can  be folded so that both sides  match.
To be a line of symmetry, theshape must have two halvesthat match exactly.When you trace a heart onto apiece of folded pap...
Which of these flags have aline of symmetry?United States of America   Canada         Maryland          England
What about these math symbols?         Do they have symmetry?
How many lines of symmetry to these regularpolygons have?                                    Do you                       ...
Rotation        (Turn)• The action of turning a figure  around a point or a vertex.
Click thetriangle to               Turning a figuresee rotation               around a point               or a vertex
Translation        (Slide)• The action of sliding a  figure in any direction.
Click the Octagonto see Translation.                      The act of sliding a figure in                      any direction.
Reflection (flip) The result of a figure  flipped over a line.
Click on thistrapezoid toseereflection.   The result of a figure flipped over a line.
Which shapes show reflection,  translation, or rotation?
Symmetry,rotation, reflection,translation
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Symmetry,rotation, reflection,translation

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Transcript of "Symmetry,rotation, reflection,translation"

  1. 1. MathsProject
  2. 2. .Symmetry.Rotation.Translation.Reflection
  3. 3. Symmetry
  4. 4. What is line of symmetry• A line on which a figure can be folded so that both sides match.
  5. 5. To be a line of symmetry, theshape must have two halvesthat match exactly.When you trace a heart onto apiece of folded paper,and then cut it out, the two halfhearts make a whole heart.The two halves are symmetrical.
  6. 6. Which of these flags have aline of symmetry?United States of America Canada Maryland England
  7. 7. What about these math symbols? Do they have symmetry?
  8. 8. How many lines of symmetry to these regularpolygons have? Do you see a pattern?
  9. 9. Rotation (Turn)• The action of turning a figure around a point or a vertex.
  10. 10. Click thetriangle to Turning a figuresee rotation around a point or a vertex
  11. 11. Translation (Slide)• The action of sliding a figure in any direction.
  12. 12. Click the Octagonto see Translation. The act of sliding a figure in any direction.
  13. 13. Reflection (flip) The result of a figure flipped over a line.
  14. 14. Click on thistrapezoid toseereflection. The result of a figure flipped over a line.
  15. 15. Which shapes show reflection, translation, or rotation?
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