Detailed Lesson Plan in Mathematics V
- 1. Detailed Lesson Plan In Mathematics V I. Objectives At the end of 50 minutes¡¯ discussion, 78% of the students will be able to: a. Visualize circumference of a circle b. Measures the circumference of a circle using various tools; c. Observe accuracy in measuring circumference of a circle II. Subject Matter Topic: Visualizing Circumference of a Circle References: Curriculum Guide, Teachers Manual in Math 5, p.231 ¨C 233 Mathematics for Better Life p. 242 ¨C 243 III. Procedure Teachers Activity Students Activity Preparatory Activity Good morning! How are you today? Okay, please rise for the prayer. Praise be the name of our Lord, Jesus Christ Before you take your sits, kindly please pick-up the pieces of paper under your chairs. Please be seated. 1. Drill (Review) What have we discussed last meeting? Very good! What instrument did you use to draw circles? Very good! Because compass is an instrument used to draw circles? And when we say radii it is what? Radius is the plural form of Radii. And radius is a line segment from the center to a point on the circle. Good morning Teacher! Fine teacher! In the name of the father . . . AMEN Now and forever Amen In the name of the father . . . AMEN (picking up the papers) Thank you Sir! Drawing circles with different radii. Compass Radius Radius
- 2. Is that clear to you now? Okay! 2. Motivation The teacher will read a short poem about circle I¡¯m a Circle I¡¯m a circle I¡¯m a circle Watch me bend Watch me bend I am just a curved line That will never end I am that smooth Because I am round I don¡¯t have the edges And I am harmless When every time they touch me They began to squeeze me I¡¯m a circle I¡¯m a circle What is the title of the poem? Very good! How do they describe the circle? Anything? Very good! B. Development Activities 1. Presentation What have you notice while we are reading the poem, what is it all about? Very good! Does circle have edges? What have you see in front Eunice? What we have done earlier is connected to the topic we are going to discuss this morning. It¡¯s all about Visualizing the Circumference of a Circle. As you can see in front there are set of circles which has different sizes. Yes, teacher! I¡¯m a circle Round and smooth Have no edges and harmless Circles None sir! Set of circles sir!
- 3. What are we going to do is, we have to visualize the circumference of each circle. Before anything else who knows what is circumference? For better understanding about the circumference of the circle take a look of this examples. (after showing the set of circle the teacher will explain how that happens) When circle A was roll over the tape measure the circumference is 11cm. How about circle B? Very good! How about circle X? And circle Y is about 54cm. 3. Fixing Skills The teacher will call student from the class to get the circumference of a circle. Circumference is the distance around the circle. It¡¯s about 29cm It¡¯s about 30cm 2cm 6cm 15 35 15cm 35cm 18cm 10 15 20 35 40 45 9cm 20cm 46cm A B X Y
- 4. 4. Generalization How did you see or visualize the circumference of a circle based from the activities that we have done? Again, what is circumference? Very good! 5. Apllication Group Activity Using a tape measure and a cylinder pipe with different sizes, the students will be divided into 4 groups to analyze each cylinder pipes by getting its diameter and circumference. By using different or various measuring tools / devices. Circumference is the distance around the circle.
- 5. (after 5 minutes) The teacher will ask the group members about their answers. (Group 1 ¨C 4 ) IV. Evaluation Answer the following and get the circumference of each circle. 1. 2. 3. 4. 5. Presentation of work. (*posted on the board)
- 6. V. Assignment Read and study Lesson 2: Circumference of the Circle on p. 244 ¨C 245 . Good bye class! Good bye Sir! Prepared by: King Harold T. Serrado Student Teacher