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A Semi Detailed Lesson Plan in Math 5

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A Semi Detailed Lesson Plan in Mathematics V quarter 3 (week 5)

I. Objectives
a. The learner is expected to demonstrate understanding of circles
b. The learner is able to describe construct circles
c. Draws circles with different radii using a compass Code: M5GE-IIIe-24,

II. Subject Matter


Drawing circles with different radii using a compass

III. Learning Resources


a. References
https://youtube.com/watch?v=aHoJucPAIJc&feature=shares
b. Materials
Powerpoint, string

IV. Procedures
A. Reviewing previous lesson
What is polygon ?
Is Circle a polygon?

B. Motivation
activity:
Students will be group into 3
give each group a string
Each group will chose one representative to stand in front of them holding the other
end of the string around to form a circle, placing other members evenly on the
imaginary distance around the circle
What figured is formed?
What does the pupil in the middle represent?

C. Lesson proper
A circle is the set of all points in a plane with the same distance from a certain point
called the center of the circle.
A compass is an instrument to draw a circle or an arc. It is made up of two moveable
arms hinged together where one arm has a pointed end and the other arm holds a
pencil.

Term related to circle


Center- Is the fixed points in which the points on circle are equidistant.

Radius- is a segment that connects the center point to any point on the circle. it is
also half of the diameter. The plural form of the radius is a radii

Diameter- is a segment that connects two points of a circle and passes through its
Center. It is the longest chord of a circle.
Chord- is a line segment that connects any two points on a circle.

Circumference- it is the distance around the circle, or one complete are with the
same start and end point.

Arc is the part of the circumference of a circle.

Central angle- it formed by two radii.

Inscribed angle- Angle has a vertex on the circle.

Activity Time:
draw a circle with a center at A and a radius of 2 centimeter.
first, set up compass to an opening of 2cm.
second, draw point A with a pencil. Next compass to draw the circle.
We now have a circle A. Let us put some radii. from the center, draw a segment to
any part of the circle.

Generalization:

Always remember that circle is the set of all points in a plane with the same distance
from a certain point called the center of the circle.
A compass is an instrument to draw a circle or an arc. It is made up of two moveable
arms hinged together where one arm has a pointed end and the other arm holds a
pencil.

Evaluation

Draw circle C with 5 radii using a compass

Asignment: Draw circle E and E with a 8 radii each on your notebook.

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