Bilateral symmetry 1 ESO ACTIVITY

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Bilateral symmetry 1 ESO ACTIVITY

  1. 1. BILATERAL SYMMETRY ACTIVITY
  2. 2. DRAWING PARALLEL LINES 1. Put the hypotenuse of the 45º square over the line. 2. Put the hypotenuse of the 30º square on one of the cathetus of the 45º square. 3. Hold the 30º square tight and move the 45º square until the right place. 4. Draw the parallel line on the hypotenuse of the 45º square.
  3. 3. DRAWING PARALLEL LINES
  4. 4. DRAWING PERPENDICULAR LINES 1. Put the set of squares as if you were going to make parallel lines. 2. Turn the 45º square to stand on the other cathetus. 3. Hold the 30º square tight and move the 45º square until the right place. 4. Draw the perpendicular line on the hypotenuse of the 45º square.
  5. 5. DRAWING PERPENDICULAR LINES
  6. 6. SYMMETRY: COPYING A FIGURE Given half a figure and its symmetry axis, draw the other half: 1. Draw perpendicular lines to the axis throwgh the most important points of the figure 2. Point with the compass on the intersection of the parallel line and the axis 3. Open the compass to the point on the figure 4. Turn the compass and draw an arc on the parallel line
  7. 7. SYMMETRY: COPYING A FIGURE
  8. 8. CHECKING THE CONSTRUCTION Cut the silhouette and fold axis to check the accuracy of the construction!!!!

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