Designer Fractions - Symmetry - The Diigo Meta page

• 16 Oct 14
  

  Samantha Johnson

  •   Symmetry is a very important concept in mathematics which you observe frequently in nature.As long as you study mathematics, you will study symmetry.

         There are several types of symmetry. We are going to investigate line symmetry. Think about your own body. If you drew a line down the center of your body from the top of your head to the bottom of your feet, your body on one side of the line would be almost identical to the part on the other side of the line. If they were exactly identical, we'd call the line a line of symmetry. Would a line across your waist be a line of symmetry?

         You can think of a line of symmetry as a fold line. If you fold a figure on the line of symmetry, the figure will fold right in half, with both sides right on top of each other.

         Some figures have more than just one line of symmetry, and some have none. Consider the 3 colored designs below. First investigate the symmetry including the colors inside. In other words, red would have to fold onto red. How many lines of symmetry does each figure have?
• 27 Nov 12
  

  Diana Burns

  Great activity to teach lines of symmetry using pattern blocks.

  math symmetry

• 31 Mar 10
  

  Kelly Loomis

  pattern blocks math symmetry

• 12 Mar 10
  

  Christie k

  patternblocks

• 25 Mar 08
  

  Linda Nitsche

  Geometry Mathematics imported

• 18 Dec 07
  

  Joyce cluess

  list of interactive websites on fractions and line of symmetry

  fractions symmetry math

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