Lesson Planning of The Quadrilaterals Family

Students` Learning Outcomes

  • Recognize the kinds of quadrilaterals (Square, Rectangle, Parallelogram, Rhombus, Trapezium and kite).

Information for Teachers


  • A closed figure with four sides and sum of its all interior angles is 3600





  • All sides are of the same length.



  • Opposite sides are parallel
  • There are four right angles
  • Diagonals are equal.



  • Opposite sides are parallel.
  • Opposite sides are of same length.
  • Consecutive angles are supplementary (their sum is equal to 1800)
  • All quadrilaterals, except for trapezium and kite are considered parallelograms.


  • Opposite sides are of the same length and parallel.



  • There are four right angles.
  • Consecutive angles are supplementary.
  • Diagonals are equal.


  • Parallelogram with four equal sides and equal opposite angles.


  • Opposite sides are parallel.
  • Diagonals are not equal.



  • Have only two parallel sides (one pair)




  • Have two pairs of equal (adjacent) sides.



  • Each angles is less than 1800)
  • Consult text book at all the steps wherever required.

Material / Resources

Writing board, chalk / maker, duster, one figure drawn on A4 paper. (One or two sets according to strength), scissor, geometry box, textbook

  • Following pictures distribute among students and ask are these triangles.
  • If they say “NO” then ask them why they said not and then introduce that Close-shape with four sides is known as quadrilateral.
  • Introduce name of each of quadrilaterals with following figures i.e., square, rhombus, trapezoid, rectangle. However, don`t explain the properties of these.



Activity 1

  • Write names of all five quadrilaterals on board.
  • Divide the class into 5 or 10 groups and give each group a sheet with one quadrilateral on it.
  • Students need to name their quadrilateral, as specially as possible, and then cut it out.
  • Use rulers and protractors to draw and measure diagonals and angles. Find as many relationships as possible between opposite sides, opposite angles, and diagonals.
  • Ask them to find answer of following questions:
  • Relation between lengths of sides
  • Relation between angles
  • Find supplementary angles.
  • Number of parallel pairs
  • Ask each group to record its findings and write inside the shape.
  • Invite one presenter in front of class and present the quadrilateral given to that group..
  • Distribute a worksheet or draw the given table on board and then check mark each characteristic for reinforcement.
  • Teacher leads students to recognize relationships between quadrilaterals and fill the table.
  • Ask them to look for things similar to these quadrilaterals and write their names. This can be given as Home work as well.


  • Wrap up the activity by drawing each figure on board and repeating its characteristics with whole class.


Sum up / Conclusion

  • Quadrilateral just means “four sides” (quad means four, lateral means side).
  • Any four-sided shape is a Quadrilateral.
  • But the sides have to be straight, and it has to be 2-dimensional.


  • Four sides (or edges)
  • The interior angles add up to 360 degrees.


Types of Quadrilateral:



  • “Name that Quadrilateral”
  • Is it a square or a rhombus?
  • Draw a Trapezoid on board and ask why it is not a Rhombus?
  • (Students will have to decide after thinking about properties of both. Similarly you can give questions for any of two shapes.)
  • Conduct a game in class “Pass Word”. One group will give clues to the other group and they have to find the figure.
  • Prepare True / false questions, such as; every rectangle is a parallelogram. True / False
  • Every square is a quadrilateral. True / False
  • A rhombus is a kite also. True / False
  • Involve the students in solving the exercise questions given at the end of the lesson of text book.

Follow up

  • Tick the appropriate box according to the given pictures below.








Opposite sides parallel






Opposite sides equal






Opposite angles equal






Consecutive angles supplementary






four right-angles






four equal sides






diagonals bisect each other






diagonals congruent






diagonals perpendicular






Diagonals angle bisect.







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