School
Teacher
Teaching Dates and
Time
MUNTINLUPA NATIONAL HIGH
SCHOOL
EMARIE C. FELICANO
October 4, 2023
Grade Level
GRADE 7
Learning Area
Quarter
SCIENCE 7
1st
I. OBJECTIVES
A. Content Standard
B. Performance Standard
C. Learning Competencies/
Objectives (Write the LC Code
for each)
a. CONTENT
b. LEARNING RESOURCES
A. References
1. Teacher’s Guide pages
2. Learners Materials pages
3. Textbook pages
4. Additional Materials from
Learning Resource (LR) portal
B. Other Resources
c. PROCEDURES
A. Reviewing previous lesson or
presenting the new lesson
B. Establishing a purpose for the
lesson
The learners demonstrate an understanding of some important
properties of solutions.
The learners should be able to:
perform in groups in guided investigations involving community-based
problems using locally available materials
At the end of the lesson, students should be able to:
a. Compute for concentration of a given solution
Concentration of Solution
Pages 26-27
Pages 16-17
PowerPoint Presentation
When you wake up in the morning and make your coffee, how much sugar,
coffee and creamer do you pour in your cup?
Why exact amount of sugar, coffee and creamer should be put in your coffee?
C. Presenting examples/ instances of
the new lesson
Concentration of Solution
Refers to how much solute is dissolved in a given amount of solution.
Discussing the formula:
D. Discussing new concepts and
practicing new skills #1
E. Discussing new concepts and
practicing new skills #2
B. Seatwork
A. Giving sample problem.
1. The label of the 200-mL rubbing alcohol that Mrs. Herrera bought shows
that it contains 40% ethyl alcohol. What is the volume of ethyl alcohol does
the
rubbing alcohol contain? Show your calculations.
2. Which is more concentrated, a solution containing 5 grams of salt in 10
grams of water or a solution containing 18 grams of salt in 90 grams of
water? Why?
F. Developing Mastery (Leads to
formative assessment 3)
Labels of products sold often show the concentrations of solutes
expressed as percent (%) by volume or mass. The alcohol used as a
disinfectant is a solution of 70% ethyl or isopropyl alcohol, meaning 70 mL
alcohol. There are also solutions sold as 40% ethyl or isopropyl alcohol.
Vinegar is often labeled as “5% acidity,” which means that it contains
5 grams of acetic acid in 100 g of vinegar. The common antiseptic, agua
oxinada is a 3% solution, that is, 3 grams hydrogen peroxide in 100 mL
water.
The concentration of solid solutions, like gold jewelry, is expressed as
karat. Pure gold is referred to as 24 karats. Jewelry that is said to be 18
karats contains 18 grams of gold for every 24 grams of the material, 6 grams
consist of the other metal like copper or silver. This material has a
concentration of 75% gold, that is, [18/24(100)]. A 14 karat (14K) gold
contains 14 grams gold and 10 grams of another metal, making it 58.3%
gold.
G. Finding practical application of
concepts and skills in daily living
Why knowledge on concentration important in our daily life?
 Pharmaceuticals
 Food and Beverage
 Chemical Manufacturing
 Water Treatment
 Cosmetic Industry
H. Making Generalization and
abstraction about the lesson
Let the students answer the following questions:
I.
Evaluating Learner
J. Additional activities for
application or remediation
 What is concentration of solution?
 What is the formula in computing concentration of solution?
Solve the following. Show your solution.
1. How many mL of ethyl alcohol are present in a 50 mL bottle of
rubbing alcohol?
2. A one peso coin has a mass of 5.5 grams. How many grams of copper
are in a one-peso coin containing 75% copper by mass?
Assignment:
Answer the questions: ½ sheet of paper, make research the question.
 What is element?

d. REMARKS
e. REFLECTIONS
A. No. of learners who earned 80%
in the evaluation.
B. No. of learners who require
additional remediation who
scored below 80%
C. Did the remedial lesson work?
No. of learners who have caught
up with the lesson.
D. No. of learners who continue to
require remediation.
E. Which of my teaching strategies
worked well? Why did these
work?
F. What difficulties did I encounter
which my principal or supervisor
can help me solve?
G. What innovation or localized
materials did I use/ discover
which I wish to share with other
teachers?
What is compound?
Prepared by
EMARIE C. FELICANO
Teacher I
Checked by:
Mrs. Rosalinda Benavidez
Master Teacher