Quadrilaterals

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Quadrilaterals

  1. 1. Which shape is the odd one out?
  2. 2. Our Objectives Today: Identify and name quadrilaterals Classify shapes according to their properties Quadrilaterals 30th September 2013
  3. 3. What do all Quadrilaterals have in common?
  4. 4. What makes a square a square? • All side lengths equal • All angles equal • Two sets of Parallel lines • 4 Lines of symmetry
  5. 5. Exercise 1 A square has four lines of __________ A _____ has two sets of parallel sides, 2 matching acute and obtuse angles A _ _ has two right angles, only one set of parallel sides and no lines of symmetry A ________________ has four equal angles and two pairs of matching sides, and two lines of symmetry A _____________ is a special parallelogram where all of the sides and angles are the same length A ________________ has only one line of symmetry, two sets of equal sides and only one set of matching angles symmetry parallelogram right trapezium rectangle rhombus kite
  6. 6. Exercise 2 – True or False All Quadrilaterals have at least 1 line of symmetry. All quadrilaterals have at least 1 pair of matching angles Trapeziums have only one pair of parallel sides A square could also be classified as a rectangle All shapes with 4 right angles have two lines of symmetry The diagonals of a rectangle are always the same length True True False True False False
  7. 7. Whodunnit? Follow the clues to find the criminal....... The criminal has at least one line of symmetry The criminal has more than two matching angles The criminal does not have all sides equal
  8. 8. Its a fair cop, Guv! GUILTY! Well done!
  9. 9. It wasn’t me! Innocent. TRY AGAIN
  10. 10. Whodunnit? Ask Questions to find the criminal.......
  11. 11. Its a fair cop, Guv! GUILTY! Well done!
  12. 12. It wasn’t me! Innocent. TRY AGAIN
  13. 13. Word Wall Choose a keyword used in today’s lesson. Nominate another classmate to tell us what it means! Symmetry Acute Obtuse Quadrilateral Parallel Diagonal Square Right Angle Opposite Adjacent

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