Uploaded by analyn itaas

Detailed Lesson Plan in Science co 3

advertisement
Detailed Lesson Plan in Science –9 (CHEMISTRY) CO-3
Performance Standard:
The learners should be able to compare and contrast ionic and covalent bond using multi-media
presentation.
Content Standard:
The learners demonstrate an understanding of how atoms combine with other atom by
transferring or sharing electrons.
I.
Objectives:
At the end of 60 minutes, the students are expected to achieve 75% level of
proficiency of the following:



II.
Explain the formation of ionic, metallic and covalent bond;
Recognize different types of compounds (ionic or covalent); and
Explain how ions formed.
Subject Matter:
A. Topic: Chemical Bonding
B. References: Science-9 Learners Module pp.90-102;
http://curriculum.nismed.upd.edu.ph; and Phoenix Science Series-Chemistry Textbook
pp. 276-310.
C. Materials: Power Point Presentation, Periodic Table of Elements, cardboard, and
chalk
D. Teaching Methods: Group Work Strategy
E. Science Concept: The sharing or complete transfer indicates that the atom has
attained stability. Either the sharing or complete transfer of electrons leads to the
formation of compounds. The valence electrons are the outermost electrons which
are directly involved in chemical bonding. Covalent bonds may be polar or nonpolar.
Metallic bonding exists in metal through the attraction between the freely-moving
valence electrons and the positively charged metal atom.
III.
Learning Activities
Teacher’s Activity
A. Preliminary Activities
1. Prayer
2. Greetings
 Good morning class.
3.

4.

Checking of Attendance
Is anyone absent today?
Setting of Classroom standards
What are the important rules
to be followed while the class
is going on?
5. Review
 You have learned about the particles of
Matter.
Learners’ Activity
- Good morning Teacher Analyn.
Good morning classmates.
- None teacher.
- Listen when somebody is talking.
- Raise our right hand if we want answer.
- Work cooperatively and harmoniously.
-The particles of matter like atoms are
composed of electrons, protons and
neutrons.

Get your Periodic table. What do you
notice about the electronic configuration
of the noble gas?
6. Motivation
 Look at the Periodic table. Did you notice
the vertical arrangement of the element?
Notice the number of each group?
Do you know what information it gives
you?
- Except for helium, all of them have
eight electrons at the outermost energy
level.
-This is called family or group.
-The number of valence electrons.
7. Presentation

Do you still remember the meaning of
Valence electrons?
-Valence electrons are the outermost
electrons which directly involved in
chemical bonding.

The valence electron gives you the number
of electrons at the outermost energy level
of the atom.
 This information you need to know in order
for you to determine whether atoms transfer,
accept, or share electrons to become stable.
B. Developmental Activities:
 By the used of the Projector (Slide show)
there are some key learning check
regarding the different types of bonds.
Activity Sheet:
Compounds
Structural Formula Types of Chemical
bonding
Borane
BH3
Iodine gas
I2
Silver Wire
Ag
C. Discussion

Using a projector (Slide Show) to present
to the class, progressively run through the
slides to impart all the key points about
different forms of chemical bonding.
D. Generalization
 How ionic and covalent compounds forms?
- The sharing or complete transfer
indicates that the atom has attained
stability. Either the sharing or complete
transfer of electrons leads to the
formation of compounds.


Why is an ionic compound different from a
covalent compound?
-Ionic bond is an electrostatic force of
attraction which is formed between two
oppositely charged ions, while covalent
bond is a force of attraction which is
formed between two atoms sharing
electrons.
How is metallic bond formed?
-Metallic bond is a force attraction which
is formed between two metals.
1.
2.
3.
4.
5.
IV.
Evaluation
In HCl molecule, the atoms are held by___________________.
a. Ionic compound
c. hydrogen bond
b. Covalent bond
d. metallic bond
A covalent bond____________.
a. Involves shared electrons
c. results from the transfer of electrons
b. Is formed by sharing of electron
d. is also called electrovalent
In an ionic bond____________________.
a. Electrons are transferred
c. there are London forces
b. Electron are equally shared
d. there is unequal charge distribution
Which of the following substances are ionic?
a. MgCl2
b. CO
c. H2S
d. SO2
b.
Which of the following elements can be paired to form a covalent compound?
a. K
b. Cl
c. C
d. O
a. A&B
b. A&C
c. B&D
d. C&D
V.
Assignment:
Study the Carbon Compounds.
Prepared by:
ANALYN D. ITAAS T-I
Science-9 Teacher
Checked and Reviewed by:
JESSICA B. PANGANORON P-I
Secondary School Principal
Download