2.11 Diagonal Properties Quads

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  • 1. Diagonals in quadrilaterals
    11/19/09
    EQ: What are the properties of diagonals in quadrilaterals?
  • 2. Review:
    Parallel?
    Perpendicular?
    Diagonal?
    Line of Symmetry?
  • 3. Review:
    Look at diagonal figures in Venn from yesterday
  • 4. Review:
    Which ones have diagonals that are perpendicular to a side?
  • 5. Review:
    Which ones have diagonals that are parallel to a side?
  • 6. Hand out blank paper.
    Fold in sixths.
    In each section, draw:
  • 7. Parallelogram
    Trapezoid
    Square
    Rectangle
    Rhombus
  • 8. Hand out charts.
    Read headings for columns.
    What goes in column one?
    Fill it in.
  • 9. What does the word bisect mean?
    Cut exactly in half.
    Look at figures and do the predict columns 2, 4, 6.
  • 10. Hand out rulers and measure sides and diagonals for columns 2, 5, 7.
    Record data.
    Be prepared to share
  • 11. Answer questions at bottom of sheet.
  • 12. EQ:
    What are the properties of diagonals in quadrilaterals?