I. Objective
II. Subject matter
* Skills
* References
* Materials
Values:
V. Assignment
III. Procedure
A. Preparatory Activities
1. Drill
2. Review
a. Checking of assignment
B. Developmental activities
1. Motivation
2. Presentation
3. Comparison and Abstraction
4. Generalization
5. Fixing skills/application
IV. Evaluation
Sample Lesson Plan in Mathematics IV
I. OBJECTIVES
Solve word problems involving perimeter of a square/rectangle
II. SUBJECT MATTER
Solving word problems involving perimeter of a square/rectangle.
Reference: Grade School Math 4 pp. 208 – 209
BEC. PELC IV .A.3.1
Material: Cut – outs of different shapes and sizes, chart, flashcards, show – me - boards
Values: Honest
PRCOCEDURE
A. Preparatory activities
1. Drill
Solve the following orally.
1. 7+7+4+4
2. 5+5+8+8
3. 7+7+7+7
4. 6+6+9+9
5. 5+5+5+5
2. Review
Find the perimeter of the following figures.
1.
6m
2. 5cm
3cm
3. 4cm
9cm
4.
8cm
5.
7cm
3. Checking of assignment
B. Developmental Activities
1. Motivation
If you are asked to buy the materials for fencing your garden. Will you give the actual cost of the materials? Stress the importance of being honest.
2. Presentation
Present the following word problems.
Concerned citizens of a barangay are cleaning and fencing a big vacant lot that measures 30m long and 25m wide to make it into a community vegetable garden. What is the distance around or the perimeter of the lot?
3. Comparison and Abstraction
* What are concerned citizens doing in their barangay?
* How long and how wide is the vegetable garden?
* Can you draw a diagram of a garden on the board?
* What are you going to find out the problem?
* How do you find the distance around the vacant lot?
* What process is to be used to find the perimeter of a rectangle?
* How do you solve for the perimeter of a rectangle?
* What formula will you use? Why?
* Guide the pupils in solving the perimeter.
* How do you write the answer?
* What is the unit of measure for perimeter?
* Present another word problem.
Mrs. Flores orders a square – shaped dining table for her new house. The table is 4 meters in each side. What is the perimeter of the dinning table?
4. Group activity
a. Divide the class into 4 groups.
b. Set the standards for group activity.
c. Distribute the activity card to each group.
d. Have them solve word problems involving perimeter of a square or rectangle
Group 1
Mr. Asuncion’s table is 45 cm wide and 80 cm long. What is the perimeter of the table
Group 2
Mandy brought a lot measuring 15 cm and 12 m wide. What is the perimeter of the lot?
Group 3
Mang Pilo put a sari - sari store of a square lot in front of the house. The lot measure 3m on each side. What is the perimeter of a lot?
Group 4
One side of a square playground of a Tampok Elementary School measures 50m. How many meters of chicken wire are needed to enclose the playground?
e. Reporting of output by each group.
5. Generalization
How do you solve word problem, involving perimeter of a square of a s quare of rectangle?
6. Application
Solve the following problems, use your show- me - board for your computation.
1. A square swimming pool measure 7 cm on each side. What is the perimeter?
2 Romania made a rectangular frame that measure 10cm wide and 15 cm long what is the perimeter of the frame?
3. Find the perimeter of a house lot which is 20m long and 20m wide?
Evaluation
Choose the letter of the correct answer.
1. A room is 20 meters long and 13 meter wide. What is the perimeter of a room?
a.33m b. 56m c.76m
2. Raul has a square garden which measures 8 meters on each side. What is its perimeter?
a. 22m b. 42m c. 52m
3. A fishponds has a length of 7 meters and a width of 6 meters. How much wire is needed to fence the fishponds?
a. 26m b. 36m c. 16m
4. A Ping-Pong table measures 3m long and 2 m wide. What is the perimeter of the table?
a. 12m b. 10m c.14m
5. How many centimeters of lace will be used to decorate the edges of a square handkerchief measuring 27cm on each side?
a. 109cm b. 110cm c. 105cm
V. Assignment
Read and solve.
1. A square picture frame has a side of 4cm. what is its perimeter?
2. How many meters of wire are needed to enclose a rectangular yard 12 meters land 7 meters wide?
3. A rectangular garden has a length of 2m width and 6m. What is its perimeter?
Others sample Lesson Plan :
LESSON PLAN IN MATHEMATICS IV
I. At the end of the session the students should be able to:
l. Define and identify a quadratic function.
2. Transform a Function in standard form f(x)= ax2 + bx + c
II. Subject Matter:
A. Quadratic Functions
Sub – Topic : Definition of a Quadratic Function
Rewriting Quadratic Functions in the form f(x) = ax2 + bx + c
B. References: Making Corrections in mathematics by Obana and Mangaldan
pp. 79-81.
Advanced Algebra by Dilao, Orines and Bernabe pp. 53- 56
C. Materials: Manila paper, pentel pen, chalk, eraser
D. Strategy: Teacher Expository
E. Values: Patience, Industry, Orderliness
III. Procedure:
A. Checking of Assignments
B. Unlocking of difficulties/ Recall (Multiplication of Binomials)
C. Development of the lesson:
1. Introduction to the lesson
2. Presentation of illustrative examples
i. Determine which of the following are quadratic functions
a). f(x) = x2 + 7x + 12
b). f(x) = 5 – 4x
c). f(x) = ( 4 + 3x)2
d). g(x) = 3x – 5x3
e). g(x) = -2x2
f). h(x) =3x2 – 5x - 12
g) h(x) = 2x2 - x + 5
3 4
h). h(x) = (x-3)2 – (x +2)2
ii. State the value of a, b and c in each of the following
functions/equations:
a.) f(x) = x2 + 5x +-14
b.) f(x)= 6 – 5x2
c.) f(x) = x2 + 7x + 6
d.) 4x2 + 8x = -3
e.) a2- 25 = 0
f.) 3n2- 18n + 6 = 0
iii. Transform each of the following functions in the form f(x)= ax2 + bx + c
a.) f(x) = ( x + 2)2
b.) f(x) = (x- 4)2 – 7
c.) g(x) = - (2x + 1)2 + 3
d.) h (a) = 1 – 3a + 4a2
e, ) h(m) = 3 (x – 5)2 – 2
3. Generalization
a.) What is the degree of a quadratic function?
b) How do you rewrite a quadratic function in the form f(x)= ax2 + bx + c
4. Practice Exercises
Rewrite each of the following in the form f(x) = ax2+ bx + c, then state the value of a, b and c.
a.) f(x) = ( x – 5)2 + 7
b.) f(x) = (x + 1)2 – (x+ 1) + 2
c.) g(x) = 3(x+ 1)2 -5
2 2
5. Evaluation:
Choose which of the following are quadratic functions then rewrite them in the
form f(x) = ax2 + bx + c. State the value of a, b and c.
a.) g(x) = x2 – 4x + 1/3
b.) g(x) = (x – 4)2 + 8x3
c.) h(x) = -2( x + 3 )2 – 9
d.) h(x) = 2(x-3)
e.) f(x) = x+ 1
f.) f(x) = (x + 1)2 – 2(x – 2) + 3x
IV Assignment:
Answer Exercise No.2 a, b, c, d, e
Reference: Exploration and Application Workbook p.41
Prepared by:
Mrs. Eva M. Vila
M T-II
Tidak ada komentar:
Posting Komentar