MATH 4 DEMONSTRATION TEACHING

1. MATHEMATICS 4
MARLO B. BALEROSO
TEACHER

2. HOUSE RULES
1.Do not shout. If you want to answer,
raise your right hand. Answer in a
complete sentence and avoid
answering in chorus.
2.Participate actively in the activities.

3. LINE
LINE SEGMENT
RAY
POINT
What are the parts of a line?

4. Line Dance
• According to Wikipedia, a Line Dance is
a choreographed dance with a repeated
sequence of steps in which a group of
people dance in one or more lines or
rows, all facing either each other or in
the same direction, and executing the
steps at the same time. Unlike circle
dancing, line dancers are not in physical
contact with each other.

5. PARALLEL,
INTERSECTING AND
PERPENDICULAR
LINES

6. Form different kinds of lines depending on the
instruction given. Be in front of the class to
perform.
Game: “Forming Lines”.
All those who got the color yellow will form two
lines that meet at the center.
All those who got the color red will form 2 lines
that show square corners.
All those who got the color blue will form 2
straight lines that do not touch each other.

7. Did you follow the directions
correctly?
Following directions is important
to do the activity correctly.

8. Figure 1
Figure 3
Figure 2

9. Parallel Lines
When two lines remain the same distance apart
at times and never intersect or cross.
Line a is parallel to Line b

10. Intersecting Lines
When two lines meet or cross each other to
form an X
Line AB intersects Line CD

11. Perpendicular Lines
When two lines meet or cross each other in a
special way forming a square corner
Line X is perpendicular to Line Y
X
Y

13. perpendicular
Intersecting lines
intersects
Line a is ll to Line b
Line X is __ to Line Y
X
Y
Line AB intersects to Line CD

14. “Teamwork makes the dream
work”. If there is unity you will
succeed in your activity.

15. GROUP 1
Assemble the cut-outs to show the
picture and identify the different kinds of
lines that can be seen in the image.
Write the kind of lines in each picture.

16. GROUP 2
Draw the following objects and
identify if it is parallel, intersecting
or perpendicular lines.

17. GROUP 3
Choose 3 alphabets/letters and make
a lettering of the these that
represents parallel, intersecting and
perpendicular lines.

18. ACTIVITY 2
Describe each following lines.
1.Parallel
2.Intersecting
3.Perpendicular

19. Parallel, Intersecting and
Perpendicular Lines Song
Tune: This Is the Way I Brush My Teeth

20. Parallel lines never touch,
Never touch, never touch
Parallel lines never touch,
at any point!
Perpendicular lines make right
angles,
Make right angles, make right
angles
Perpendicular lines make right
angles
Forming square corners
Intersecting lines
cross only once,
Cross only once,
cross only once
Intersecting lines
cross only once
They always
cross each other

21. How many melodies does the song
have?
A song with only one melody or section
across a whole song or lyrics is called
___________________
UN_T_RY SONG OR STR_PH_C SONG
UNITARY SONG OR STROPHIC SONG

22. Study the map and fill in the blanks with
parallel, intersecting, and perpendicular lines.
What are the things, structures or buildings
that you will see on your way to school from
your house?

24. 1. Balagtas Street is ______________________
to G. Silang Street.
2. Mabini Street and Malvar Street are
________________ streets.
3. Bonifacio Street is ________________ to
Magsaysay Street.
perpendicular
parallel
perpendicular

25. How can you describe
parallel lines?
How can you describe
intersecting lines?
How can you describe
perpendicular lines?

26. PARALLEL LINES ( )are lines that do
not meet each other.
INTERSECTING LINES are lines that
intersect or cross each other.
PERPENDICULAR LINES ( ) are two
lines that intersect and form a right
angle or square corner.

27. Read the following item. Choose the letter of
the correct answer for items 1-4 and write your
answer on the blank for item 5.
1.Which pair of lines are parallel lines?
A. C.
B. D.

28. 2. Which of the following shows intersecting lines?
A. C.
B. D.

29. 3. Which of the following shows perpendicular
lines?
A. C.
B. D.

30. 4. Which situation tells about parallel lines?
A. Capital Letter L
B. Hands of a clock at 6:40
C. Opposite sides of the table
D. Capital Letter T

31. 5. Choose one type of lines (parallel, intersecting or
perpendicular lines) and describe briefly.
PARALLEL LINES are lines that do not meet each
other.
INTERSECTING LINES are lines that intersect or
cross each other.
PERPENDICULAR LINES are two lines that
intersect and form a right angle or square
corner.

32. ASSIGNMENT
Remediation (0-3)
Take a picture of objects in your house
where you can see parallel lines,
perpendicular lines, and intersecting lines.
Do this in your portfolio.

33. Enrichment (4-5)
Draw each pair of lines using a ruler.
1. Line AB is parallel to Line CD.
2. Line EF intersects Line GH
3. Line IJ is perpendicular to Line KL
4. Line MN is parallel to Line OP
5. Line QR is perpendicular to Line ST