I. OBJECTIVE: At the end of the lesson, the learners should be able to: a.) Identify the different kinds of polygons b.) Name the different kind of polygons c.) Give the number of sides and angles of a given polygon accuratelyII. SUBJECT MATTER: Topic: Polygons Reference: Integrative Mathemetics Materials: drawings of polygons, chalk, board Core Value: accuracyIII. Procedure: Routinary Activity: *Prayer *Greetings *KKP TEACHER’S ACTIVITY LEARNERS’ ACTIVITY a.) Motivation: “Last meeting, we talked about lines and line segments. Again, what is a line?” “ A line is endless and infinite.” “That’s right! How about a line segment?” “ A line segment has 2 endpoints.” “ Take a look on this book. How many line segments are there in its shape?” “ Since the shape of the book is rectangle, there are 4 line segments.” “Very good. Now, how do we call the shapes whose sides are all line segments?” b.) Presentation of the Lesson: “Toda we are going to discuss about Polygons. And what are polygons?” Polygons are plane figures whose sides are all line segments.
“Now, take a look on this two figures, which among them is a polygon?” A B A “Figure B, is a polygon.”“Why do you say so?” “ Figure B is a polygon because all of its sides are line segments.”“Very good. The points where 2 line segmentsmeet is called vertex/vertices.” c.) Lesson Proper “ There are different kinds of polygons depending on the number of its sides and angles. Study the table.” POLYGONS NO. OF SIDES NO. OF ANGLES Triangle 3 3 Quadrilateral 4 4 Pentagon 5 5 Hexagon 6 6 Heptagon 7 7 Octagon 8 8 Nonagon 9 9 Decagon 10 10 “ Familiarize yourselves on the kinds of polygons for 5 minutes and we are going to name different figures later.” (After 5 minutes) “Take a look on the figures on the board and let’s study them one by one.”
“How many line segments are there in the figure?” “3” “How many angles are there? “3” “ So, What kind of Polygon it is? “Triangle.” “Now, I’m going to point the figure and tell How many line segments/sides and angles it has and what kind of polygon it is.” “4 sides, 4 angles, Quadrilateral” “5 sides, 5 angles,pentagon.” “6 sides, 6 angles, hexagon” The teacher is going to present more figures.d.) Generalization: “what are polygons?” “Polygons are figures whose are all line segments.”
“How do you call the common endpoint where two tine segments meet?” “vertex”IV. EVALUATION “You are to be grouped into 4. Count off. Each group prepare for a paper basket and then everyone of you will write his/her name in a ¼ sheet of paper then fold it and place it in the basket of your group. I will draw one for Group 1 and group 11, I will point at a figure on the board and you are to identify what kind of polygon it is. The two who were called will start at the back. Every correct answer corresponds to 1 step forward.(First to answer will be considered.) Every after a correct answer will change the participants. (2 points each correct answer)V. ASSIGNMENT: Make an art using the different kinds of polygons on a short bond paper.