Detailed_lesson_plan_in_math_iv_parts_of.docx

DETAILED LESSON PLAN in MATH IV Parts of a Circle I. Learning Objectives Cognitive:

Identify the parts of a circle

Psychomotor: Draw a circle and show its parts Affective:

Show cooperation in group activities

II.

Learning Content Skills: 1. Identifying the parts of a circle 2. Drawing a circle and showing its parts References: BEC-PELC III.A.1.2 textbooks in Math 4 Materials: cutouts of circles, drawing of circles, colored chalk Value: Cooperation

III.

Procedure Teacher’s activity Good morning class! (Checking of attendance) Who are absent today? Very Good! Now bring out your assignment.

Student’s activity Good morning sir!

None sir!

A. Preparatory Activities 1. Drill Before we will proceed to our lesson let’s have a game it is called the “crazy quilt” I will choose 2 players in the class. Here is what they do. They will choose equation on the board and solve for its answer. If they solve the equation right they will shade the block with this colored chalk. The player who colored the most parts wins. 2. Review Here are picture of the house. Identify the square, rectangle, trapezoid and parallelogram by naming the parts of the house. What part of the house is square?

The windows sir!

What about the rectangle?

Sir! The door

What about the Trapezoid?

Sir! The roof

How about the parallelogram?

Sir! The body of the house

3. Motivation (Present drawings of circles of different size) What do you see class?

Different size of circle

What do you notice on the circle?

They have different size

There are different size of circle there are some big and there are small. Class! Do you know that there are parts of a circle?

No sir

B. Developmental Activities 1. Presentation A. (Group the students) Sir! Cooperate What you should do if you are in the group? Why do you think you should cooperate with one another?

To made the work done quick and correct

(Distribute the cutout to the groups) o Fold the circle into 2 equal parts? o Then mark the center with an X. o Then mark the fold A and B at both ends. The line that form between the circle are what you call “diameter”

Divides the circle into 2 equal parts

What diameters do to the circle?

Diameter divides the circle into 2 equal parts.

Now what is diameter? o This time fold again the circle into 4 equal parts.Then mark the fold A, B, C and D

The line segment XC, XB, XD and XA are what we call “radius” What do you notice about the radius?

They have the same end points which is X

Therefore what is radius?

A radius is a line segment from the center to any part of the circumference

Do you know what is circumference? Circumference is a line that surrounds the circle B. Act out (Call 10 students) Hold hands together What plane figure do you form?

Sir! Circle

(Call 1 student) Stand at the center of the circle? (Call students) You will form a line between the circle that passes to the center (Call students) You will form a line from center to one point of the circle Compare the first line to the second line Which is longer?

The first line sir

Which is shorter?

The second line sir

What part of the circle is the first line?

Sir! Diameter

How about the second line? How about the students that forms the circle? 2. Guided practice (Tell them to go back to their respective group) Each group will draw a circle with “O” as the center point. Then draw a diameter and name it as RS.