Mathematics for grade 4 powerpoint presentation

1. Mathematics 4 Quarter 3
Lesson 52
Identifying and Describing Quadrilaterals
Prepared by: Mr. Leodegario C. Rodriguez
Teacher III
Buso-Buso Elementary School, Laurel District

2. Objective:
1. Identify and describe quadrilaterals
according to sides and angles.
M4GE-IIId-18.2
1. Relate one quadrilateral to another
quadrilateral.
Value: Cleanliness/ Personal Hygiene

3. Drill:
Game: Giant Step
Form 2 teams. Each team will compose of
5 pupils. Tell the kind of line being
presented on the slide as fast as you can.
One big step for every correct answer.

4. Drill:

5. Drill:

6. Drill:

7. Drill:

8. Drill:

9. Drill:

10. Review:
Feeling Quiz Bee
Draw the geometric figure of the following
descriptions. 10 seconds for each question
1. Triangle whose measure is 90 degrees.
2. It has 3 equal sides.
3. A triangle that has no equal sides.
4. A triangle that measures more than 90 degrees.
5. Triangle that measures less than 90 degrees

11. Motivation
What is this?
*Why do you have your handkerchief?
Show a handkerchief.
Who has also a handkerchief?
A handkerchief is used for your personal
hygiene. It is used to keep your body clean.
(Health Integration)

12. Motivation
What is its shape?
Now, kindly unfold your handkerchief.
How many sides does it have?
If a polygon has 4 sides, it is called a
quadrilateral.

13. Presentation
In the Grade 4 class of Mr. Rodriguez,
some pupils prepared cut-outs of
quadrilaterals. Jan Dhiel cut a square. Mary
Lyn made a rectangle, Miehl prepared a
rhombus, Roselyn cut a trapezoid, and Ayessa
made a parallelogram. Their outputs were
neat and they cleaned their mess after
cutting.

14. Discussion
What did the children prepare?
Who cut a square?
Who made a rectangle?
What did Roselyn prepare?
In the Grade 4 class of Mr. Rodriguez, some pupils prepared
cut-outs of quadrilaterals. Jan Dhiel cut a square. Mary Lyn made a
rectangle, Miehl prepared a rhombus, Roselyn cut a trapezoid, and
Ayessa made a parallelogram. Their outputs were neat and they
cleaned their mess after cutting.

15. Discussion
What about Mary Lyn? What did she cut?
What figure did Lindsay cut?
Who made a parallelogram?
*What did they do after preparing the cut-outs?
In the Grade 4 class of Mr. Rodriguez, some pupils prepared cut-
outs of quadrilaterals. Jan Dhiel cut a square. Mary Lyn made a
rectangle, Miehl prepared a rhombus, Roselyn cut a trapezoid, and
Ayessa made a parallelogram. Their outputs were neat and they
cleaned their mess after cutting.

16. Discussion
What figure did Lindsay cut?
Who made a parallelogram?
In the Grade 4 class of Mr. Rodriguez, some pupils
prepared cut-outs of quadrilaterals. Jan Dhiel cut a square.
Mary Lyn made a rectangle, Miehl prepared a rhombus,
Roselyn cut a trapezoid, and Ayessa made a
parallelogram. Their outputs were neat and they cleaned
their mess after cutting.

17. Discussion
What did they do after preparing the cut-outs?
*What can you say about their outputs?
*Is it good to clean your area after doing your
activity?
Yes, it is good to be neat and clean all the time
because cleanliness is next to godliness.

18. Performing the Activities
Group I - Cut – Group I - Cut -It has 2 pairs of
parallel sides and all sides are equal.
Group II - Draw–It is a quadrilateral that has 4
equal sides. All angles are acute angles.
Group III - Color – It is a quadrilateral that has 4
right angles. Its opposite sides are parallel.
Group IV - Paste - It has only one pair of opposite
sides that are parallel.

19. Presentation of
Output

20. What have you observed about the
quadrilaterals?
Processing the Activities
What can you say about the sides? the
angles?

21. Explore and Discover!
rectangle
square rhombus
trapezoid parallelogram
Look at the different quadrilaterals.

22. A quadrilateral is a polygon with 4 sides and 4
angles. The following are the different
quadrilaterals.
A parallelogram has 2 pairs of parallel
sides and its opposite sides are equal.
A rhombus is a parallelogram that has 4
equal sides.

23. A square is a parallelogram that has 4
equal sides and 4 right angles.
A trapezoid has only one pair of
opposite sides that are parallel.
A rectangle is a parallelogram that
has 4 right angles. Its opposite sides
are equal.

24. GET Moving!
Game: Pass it On
The ball will pass on to the class as the music plays.
When the music stops, the pupil holding the ball will
identify the quadrilateral presented on the slide.
Mechanics:

25. 1. 2.
3.
4. 5.
Identify the following quadrilaterals. Tell if it is square,
rectangle, trapezoid, rhombus, or
parallelogram.
rectangle square rhombus
trapezoid parallelogram

26. •E-Game
Keep Moving!
(The pupils will hyperlink their answers
by clicking their choice.)
(ICT Integration)

27. Directions: Answer the
following questions.
Click Yes or No.
Keep Moving!

28. 1. Is a parallelogram a rectangle?
Keep Moving!
Yes. No
A rectangle is considered a special case of a parallelogram because: Aparallelogram is a
quadrilateral with 2 pairs of opposite, equal and parallel sides.

29. 2. Is a trapezoid a parallelogram?
Keep Moving!
Yes No.
A trapezoid has one pair of parallel sides and a
parallelogram has two pairs of parallel sides.

30. 3. Is a square a rectangle?
Keep Moving!
Yes No
So a square is a special kind of rectangle, it is one where all the sides have the same
length. Thus every square is a rectangle because it is a quadrilateral with all four angles
right angles. However not every rectangle is a square, to be a squareits sides must have
the same length.

31. 4. Is a rectangle a parallelogram?
Keep Moving!
Yes. No
A rectangle is considered a special case of a parallelogram because:
Aparallelogram is a quadrilateral with 2 pairs of opposite, equal and parallel
sides. Arectangle is a quadrilateral with 2 pairs of opposite, equal and parallel
sides

32. APPLY YOUR
SKILLS
•Compare square and rectangle.
•Compare rhombus and parallelogram.

33. Summarizing the Lesson
What is a quadrilateral?
A quadrilateral is a polygon with 4
sides and 4 angles.

34. The kinds of quadrilateral are
square, a rhombus, a rectangle, a
parallelogram, and a trapezoid.
What are the kinds of quadrilateral?

35. A. Directions: Match the meaning of each
quadrilateral in column A with their corresponding
figures in column B. Write the letters only.
Evaluation
A B
1. Rhombus A.
2. Trapezoid B.
3. Parallelogram C.

36. Evaluation
4. Draw a square.
5. Draw a rectangle.

37. Key to Correction
1. B
2. A
3. C
4.
5.

38. Draw the following quadrilaterals using a graphing paper.
1. Square
2. Trapezoid
3. Rhombus
4. Rectangle
5. Parallelogram
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