science 9 lesson

1. GRADES 1 to 12
DAILY LESSON LOG
School: Father Saturnino Urios College of Trento, Inc. Grade Level: 9
Teacher: Novy R. Salvador, LPT Learning Area: Science
Teaching Dates and
Time:
September 25-29, 2023 (M-F) Quarter: 1
I. OBJECTIVES MONDAY/TUESDAY THURSDAY/FRIDAY
A. Content Standards: The learners demonstrate an understanding of:
1. how changes in the environment may affect species extinction
B.Performance Standards: make a multimedia presentation of a timeline of extinction of representative microorganisms, plants, and animals
C. Learning Competencies: Relate species extinction to the failure of populations of organisms to
adapt to abrupt changes in the environment (S9LT -Ie - f -30)
D. Objectives D1.
a. state the components of biodiversity and their importance;
b. give examples in each component of biodiversity; and
c. reflect on how to give service in preserving life on earth.
D1.
a. Identify the natural causes of extinction;
b. infer how humans can threaten the survival of endemic
species;
c. reflect on how to give service in preserving life on earth.
II. CONTENT
Biodiversity
Species Extinction
Causes of Extinction
Anthropogenic Causes of Extinction
III. LEARNING RESOURCES
A. References
1. Textbook Pages
2. Online Materials
B. Other Learning Resources
IV.
A.Drill
B.Reviewing Previous Lesson or
Presenting the New Lesson
C. Establishing a Purpose for the
Lesson
C1.Enumerate the objectives:
a. State the components of biodiversity and their importance;
b. give examples in each component of biodiversity; and
c. reflect on how to in preserve life on earth.
C1. Enumerate the objectives:
a. Identify the natural causes of extinction;
b. infer how humans can threaten the survival of endemic
species;
c. cite ways on how human can avoid the extinction of
biodiversity.

2. D. Presenting
Examples/Instances of the
Lesson
Preliminary Task
Directions: How will you describe diversity of species?
Sketch/Draw a picture of the community where you live and describe
on how various are the species that live on it.
E. Discussing New Concepts and
Practicing New Skills #1
E1. Discuss to the class about Biodiversity E1. Discuss to the class about causes of extinction.
F. Discussing New Concepts and
Practicing New Skills #2
F1. Discuss to the class the topic about species extinction. F1. Discuss to the class about anthropogenic causes of extinction
G.Developing Mastery G1.
Ask :
1. What is biodiversity?
2. Why biodiversity is important?
G1.
Ask:
1. Enumerate the natural causes of extinction.
2. How does human affect the survival of endemic species?
H.Finding Practical
Applications of Concepts and
Skills in Daily Living/Values
Integration
Ask.
1. Give examples of concrete ways to preserve life on earth.
Ask:
1.
I. Making Generalizations and
Abstractions about the
Lesson
Ask:
1. What is biodiversity?
2. Give examples on each component of diversity.
3. What is species extinction?
J. Evaluating Learning J1.
Activity:

3. Directions: Complete the graphic organizer below.
Directions: Encircle the letter that corresponds to the correct
answer.
1. What is the complete disappearance of the members of a species
from Earth?
A. conservation B. extinction C. fragmentation D. preservation
2. Which level of biodiversity involves habitats and communities?
A. ecosystem diversity C. population diversity
B. genetic diversity D. species diversity
3. What kind of mass extinction occurred approximately 439 million
years ago (Ma) due to the dropping and rising of sea levels caused by
the formation and melting of glacier?
A. Ordovician- Silurian Extinction C. Cretaceous-Tertiary
Extinction
B. Permian-Triassic Extinction D. Late Devonian
Extinction
BIODI
VERSI
TY
TYPES OF
BIODIVERSITY
EXAMPLES

4. 4. What kind of mass extinction is the worst mass extinction on Earth
wiping out 53 percent of marine families, 84 percent of marine
genera, and around 70 percent of land species?
A. Ordovician- Silurian Extinction C. Cretaceous-
Tertiary Extinction
B. Permian-Triassic Extinction D. Late Devonian
Extinction
5. What kind of mass extinction occurred about 65 Ma when the
dinosaurs were the dominant species on Earth?
A. Ordovician- Silurian Extinction C. Cretaceous-
Tertiary Extinction
B. Permian-Triassic Extinction D. Late Devonian
Extinction
K.Additional Activities for
Application or Remediation
K1. Assignment
Directions:
V. REMARKS