Lesson Planning

1. Daily Lesson Log
School MLQES Grade FOUR
Teacher ARNEIL R. LAGANAS Learning Area MATHEMATICS
Date/Time MAY 11, 2021/ TUESDAY/ 8:00 – 8:30 AM Quarter THIRD
I. OBJECTIVES
A. Content Standards The learner demonstrates understanding of the concept of time, perimeter, area, and volume
B. Performance Standards The learner is able to apply the concept of time, perimeter, area, and volume to mathematical problems and real-life
situations.
C. Learning Competencies/Objectives
a. derives the formula for finding the area of a trapezoid;
b. finds the area of a trapezoid using square meters and centimeters; and
c. appreciate the value of sharing and apply in real-life situations.
M4ME-IVb-58
II. CONTENT Lesson 65: Finding the Area of a Trapezoid
LEARNING RESOURCES
A. References K-12 Grade 4 Curriculum, LM Math Grade 4 pages 258 to 260
1. Teacher’s Guides Lessons Guide in Elem. Mathematics p. M4ME-IVb- 58 TG PP. 277 -281
2. Learner’s Materials/ pages Learners Materials Math Grade 4
3. Textbook Pages pp. 277 to 281
4. Additional Reference from Learning
Resource
BEC-PELC IV A5
Passport to Algebra and
Geometry, pp. 512-515
Middle Grade Math, pp.335-347
B. Other Learning Resources LCD projector, Smart TV,
White Board, Marker, Clicker
III. PROCEDURES
A. Reviewing previous lesson or presenting the
new lesson
Solve Mentally
1.) N+N=36
2.) 18x6=
3.) Nx9=81
4.) N÷2=9
5.) 28÷N=14
B. Establishing a purpose for the lesson b. Written
Solve for the value of N
1. (12+24) ÷ 2x10 = N
2. (6+12) ÷ 2 x N=81
3. (N÷2) x 5= 40
4. (16+20) ÷ 2x 7= N

2. 5. (13+15) ÷ 2x N=8
2. Checking of Assignment
3. Review
Find the area of the parallelogram
● How are we going to find the area of a parallelogram?
1. What is the area of this wood?
2. Find the area of this parallelogram.
3. If : b= 9 h= 4m A=?
C. Presenting examples/instances of the new
lesson
4.Motivation
Show Video presentation of Bibingka Vendor slicing the bibingka in a parallelogram form.
● What can you say about the video presentation?
● What does a bibingka look like?
B. Developmental Activities
1. Presentation
Read and Analyze
Mother bought a native cake or “bibingka” in parallelogram form measuring 12 cm as its base and 4 cm as its
height. She wants to divide it to her 2 daughters equally. After slicing they were surprised a trapezoid was formed.
What is the total area of the new formed figures?
a. Unlocking of difficulties
b. Abstraction and Organization
● Tell something about the problem.
● Do you think it is possible to transform the parallelogram into a trapezoidal figure?
=
b = 3m

3. D. Discussing new concepts and practicing
new skill #1
What is the original figure of the bibingka?
Cut the figure using slanting line that will form two trapezoids at a time.
12 cm
12 cm
4cm b1 b2
8 cm b2 b1
4 cm + 8 cm
8 cm + 4 cm
Solution :
Parallelogram Trapezoid
A= base x height A=base1 + base2 x height
2
A= 12cm x 4cm A = 4cm+8cm x 4cm
A = 48 sq.cm 2
A = 12cm x 4cm
2
= 6cm x 4cm
4 cm
4cm
4
cm

4. = 24 sq.cm
E. Discussing new concepts and practicing
new skill #2
Compare the area of a parallelogram with the area of a trapezoid.
Can you imagine how life would be if the earth is not rotating on its axis? What do you think life is like if this is true?
In Mathematics s, rotation is also important. What do you think a trapezoid look like if we rotate it by a quarter-turn? By
half-turn?
F. Developing mastery (Leads to Formative
Assessment)
3. Practice
Solve for the answers.
1. Fatima bought a maja blanca in a trapezoid shape. It’s shorter base is 6 centimeters. It’s longer base is 8
centimeters. The height is 3 centimeters. What is the area of the figure?
2. 8 cm
12 m
3. A=? if:
b1= 10 m
b2= 14m
h= 5 m
G. Finding practical applications of concepts
and skills in daily living
5.Fixing Skills
5
cm

5. Do what you are told to do :
Group I Solve for the area of a trapezoid if:
b1= 16cm; b2=30 cm; h=14cm
Group II- Measure the cut-out figure of a trapezoid And find it’s area.
b1= 16cm; b2=30cm;h=14cm
Group III- Measure, cut and find the area of a trapezoid whose shorter base is 6cm, longer base, is 8 cm and
height is 5 cm
Group IV- Make a cut-out of a trapezoid solve for the area:
b1= 6cm; b2= 8cm; h=5cm
H. Making generalizations and abstractions
about the lesson
How do we find the area of a trapezoid?
● find the sum of the two bases
● divide the sum by 2
● multiply the quotient by its height
The formula to be used is:
A= b1+b2 x height
2
Where: b1=shorter base,b2=longer
base, h=height
I. Evaluating learning IV. Formative Test
Find the area of these trapezoids.
1.) b1 = 12m 2.) b1 = 6m
b2 = 24m b2 = 12m
h = 10m h = 9m
3.)A = 4.)A =
b1 = 6m b1 = 16cm
b2 = 10m b2 = 20cm
h = 5m h= 7cm

6. 5.)A =
b1 = 13cm
b2= 15cm
h =6cm
J. Additional activities for application or
remediation
Math- Challenge (Remediation)
Answer the following :
1. Trapezoidal lot
bases: 12m & 20 m
height: 8m
Find the area.
Math-Acer Group (Enrichment)
2.. 4cm
6cm
3.A=?
b1= 6cm
b2= 9cm
h= 7cm
IV. REMARKS
SECTIONS SCORES FREQUENCY REMARKS
4cm

7. Daily Lesson Log
V. REFLECTION
A. No. of learners who earned 80% on the
formative assessment 5
B. No. of learners who require additional
activities for remediation
4
C. Did the remedial lessons work? No. of
learners who have caught up with the
lesson
3
D. No. of learners who continue to require
remediation
2
E. Which of my teaching strategies worked
well? Why did these work?
1
F. What difficulties did I encounter which my
principal or supervisor can help me solve?
0
G. What innovation or localized materials did I
use/discover which I wish to share with
other teachers?
Checked by: