about circle

2. Setting of Classroom Standards
 When I’m talking in front,
what you are going to do?
 If you want to answer, what
will you do?

3. What was our
lesson yesterday?

4. Class, I have here different
figures.
As I show each one to you,
give the name of the figures.

11. Circle Song
I. A circle is a shape
It goes around and around
A circle is a shape
It goes around and around
It’s like a pizza and a cookie
A ring and a coin
A circle is a shape
It goes around and around
Draw a circle in the air (2x)
Draw a small, small circle in the air(4x)
Draw a big , big circle in the air (4x)
(Repeat 1st stanza)
Walk in the shape of a circle (4x)
(Repeat 1st stanza 2x)

12. At the end of the lesson the
student should be able to:
a. Identify the parts of a circle,
b. Draw a circle and show its parts
and;
c. Show cooperation in group
activities.

13. CIRCLE
Is a shape with all
points at the
distance from its
centre.

14. Now I will divide you into 5
groups for your group
activity. But before that, can
you still remember the
standards in performing
group activity?

15. INSTRUCTIONS:
a. You cut a circle. Fold the circle into 2 equal
parts, then mark the center of the circle with an X,
at the top of the endpoint of the fold mark A and
the bottom endpoint of the fold mark A and the
bottom endpoint of the fold, mark B. A to B is line
segment that divides the circle into 2 equal parts.
This is called diameter. Diameter divides the
circle into 2 equal parts. And diameter is the
longest chord of a circle and its twice the length of
a circle radius.

16. b. fold, mark C and the bottom endpoint of the
fold, mark D. This will form different line
segments from the center. The line segment
from center X to endpoint C is called radius.
The line segment XA, XB, XC and XD are the
radii of the circle.
c. The line that surrounds the circle is called
circumference. At this time, you try to answer
this question.

17. U
S
T
R
V
1. Which line segment determines the diameter?
2. What line segment determines the radius of
the circle?

18. Brainstorming session
per group/Activity proper

19. Group output reporting

20. What is diameter?
What is radius?
What is circumference?
What are the parts of the circle?

21. The outside of the circle is called
circumference
The circumference is the distance around the
circle.

22. The midpoint of a circle is
centre

23. The line drawn from the centre to
the circumference is …
radius

24. The line drawn from one circumference through
the centre to another circumference is …
radius
diameter
The diameter cuts the circle in half!

25. A line that connects one point on the edge of
the circle with another point on the circle is
called ….
chord
The chord that passes through the
centre of the circle is the diameter.

26. A segment ie. part of the
circumference of the circle is called
an ...
a r
c

27. Parts of the Circle
centre
radius
diameter
chord
arc

28. Group Quiz
Using the circle on
line segment, identify
the following parts of
the circle. Write only
the letter of the
correct answer.
E
C
D
B
A
F

29. E
C
D
B
A
F
1. BC
a. radius
b. Diameter
c. Circumference 5. XC
2. FD a. diameter
a. Circumference b. chord
b. Radius c. radius
c. diameter 6. AC
3. FC a. raduis
a. diameter b. diameter
b. radius c. arc
c. circumference 7. EFD
4. AD a. arc
a. Radius b. central angle
b. circumference c. raduis
c. diameter
x

30. Draw a circle showing the
following:
S as the center
AB as a chord
AT as a diameter
ST as a raduis
SY as a radius
SX as a radius
SO as a radius