A Detailed Lesson Plan in Science 10 Prepared By: Roldan Ormilla I
II
III
Objectives At the end of the lesson, the students will be able to: A. Analyze the impact of biodiversity to the stability of an ecosystem. B. Identify species and determined their value. C. Appreciate the importance of biodiversity. Subject Matter A. Topic: Biodiversity and Stability B. Reference: Grade 10 Science Learner’s and Teacher’s Material and Internet C. Instructional Materials: Chalk and board, Tangram puzzle, Worksheet, Procedure Teacher’s Activity A. Preparatory Activities “Good Morning Class…” “Please stand up and let us Pray first…” Is anyone absent today “Very Good” Now, Are you ready for our new
Student’s Activity “Good Morning Sir!” (one student will lead the prayer) None sir Yes sir!
lesson? B. Developmental Activities Motivation Before we proceed to our new
(The students will count and form a
lesson, I will divide you first into
groups)
four groups. (The teacher will group the
class
students
by that
counting have
off.
the
The same
number will form one group.) Are you familiar with the tangram puzzle? I have here a tangram that are arrange in many shapes of animals.
(Answer varied) Yes sir! (The students will solve the puzzle).
All you need to do is arrange the puzzle to form a square and you will be unlock the hidden picture. I will give you three minutes to arrange the puzzle. Is that clear? Presentation of the lesson After doing the activity, what do you
The students from different groups
think our lesson for today?
will answer: -Sir it something
to
do
about
Biodiversity Very Good! Discussion Now, who can among of you define
Answer varied
what is Biodiversity? Yes Danica? Very good! (The teacher will discuss the
(Listen carefully while the teacher
definition of biodiversity based on
discussing)
what they have mentioned. He will add other information that was not mentioned by the students). Every living organisms around us has its own important role or value for us to live. It can be economical, ecological and aesthetical valuable. The value of species can be divided
Direct
into three various categories. What
Economic Value and Aesthetic Value.
Economic
Value,
Indirect
are those various categories? Yes Christian? Very good! Now, who can explain what is Direct
The species is considered to have
Economic Value? Yes Joy?
direct
economic
products medicine,
are
value
sources
clothing,
if
their
of
food,
shelter,
and
energy. Exactly! Who wants to give example of
For example, some medicines being
direct
used nowadays have formulations
economic
value?
Yes
Rosemarie? Precisely! The second categories are Indirect
extracted from plants and animals.
economic value. Who can explain
value if there are benefits produced
what is Indirect economic value?
by the organism without using them.
Yes Lyra Very Good! Now who wants to give example of
For
A species has an Indirect Economic
example,
certain
species
indirect economic value?
maintain
the
chemical
quality
of
natural bodies of water, prevent soil erosion and floods, cycle materials in the soil, and absorb pollutants. Very Good! The third one is aesthetic value,
Aesthetic
who can explain what is aesthetic
provides visual or artistic enjoyment.
value? Yes Justine? Absolutely! Now who wants to give example of
For example, forested landscape and
aesthetic value? Yes Adilyn?
the calming beauty of a natural park;
value
if
the
species
or they may be used for spiritual meditation like the prayer mountains. Exactly! Biodiversity
is
very
important
Answer varied
because it sustains through flow of energy the food web on earth and contributes
to
environmental
stability. So, class, have you picture out our environment without plants, animals, trees and nothing around us, just the human being, what do you think will happen to us? All the species in an ecosystem rely on one another. For example, is the food web the 1st consumer always depends in producer, if there is no producer then all species in ecosystem will be affected. In some way, with less biodiversity, the ecosystem will become unstable. But the greater the biodiversity, the more chances that stability can be attained in an ecosystem. Generalization I know you you’ve learn a lot from
Answer Varied
this day’s discussion, can anyone recall
what
is
biodiversity?
Yes
Jovian? Very Good! Now, who can enumerate the three
Direct
categories of value of an species?
economic value, and aesthetic value.
Yes Jaylord? Exactly! How does biodiversity affect the
the greater the biodiversity, the more
stability of an ecosystem?
chances that stability can be attained
Economic
value,
Indirect
in an ecosystem Very good! It seems that all of you are already
None sir!
familiar the biodiversity of every species and their value to us. Do you have any question regarding the lesson that we had discussed? Application Since you have no question, we will have an activity. Each group will
Yes Sir. (The Students will do the activity)
discuss the value of biodiversity and
complete
the
table
1.
(Organisms and their value) found in your module. (teacher explain the instruction) Write as many as you can but please avoid repeated answer. I will give you 5 minutes to accomplish that activity the group that
will
have
most
numerous
answer will be given points. I will give you 3 minutes to accomplish that activity and after that present your output in front. Understood? After five (5) minutes. Who wants to present first? We will start with group number 1.
(Group 1 will present their output)
(After the presentation). Very good.
(Students will do so).
Give them five claps. Group 2 will be our next presenter (After the presentation). Very nice
(Group 2 will present their output) (Students will do so).
presentation. Give them five claps. Group 3 pls. present your output. (After the Presentation). Excellent!
(Group 3 will present their output) (Students will do so).
Give them five claps. Last group pls. present your output. (After the presentation). Very good.
(Group 4 will present their output) (Students will do so).
Give them five claps. Class it seemed that you really
No sir!
understand our lesson for today. Do you have any clarification? IV
Evaluation Teacher’s activity Pls. get ¼ sheet of pad paper and we will have a short quiz. Identify the following. Please listen carefully to the question. I will read the question twice. 1. This describes how varied are life forms in different ecosystems. 2. _____ is a biological community of interacting organisms and their physical environment. 3. 4. the greater the biodiversity, the more chances that ________ can be attained in an ecosystem 5. Humans benefit from a healthy ecosystem because the ecosystem provides the service of good drinking water. This is an example of _______. 6.
V
Assignment
Students’ activity (The students will follow)
For your assignment, read the topics on pages 331-334 of your Science 10 module.
