DAILY LESSON PLAN
School: Santa Cruz Integrated National High School
Teacher: Derlyn A. Madia
Teaching dates and Time: October 23, 2023
8:30 AM – 9:30 AM
I. Objectives
A. Content
Standards
B. Performance
Standards
II.CONTENT
III.LEARNING
RESOURCES
Materials
IV.PROCEDURES
A. Reviewing
previous lesson
or presenting
the new lesson.
B. Establishing a
purpose for the
lesson.
Grade Level: 7
Learning Area: Science and Technology
Quarter: 1
 Analyze the problems given.
 Solve problems related to the concentration of solution.
 Work on the problems with honesty and accuracy.
The Learners demonstrate an understanding of some important properties of
solutions.
The Learners shall be able to prepare different concentrations of mixtures according
to uses and availability of materials.
Concentration of Solutions
 Science and Technology III: Chemistry Textbook. NISMED. 2012. pp.132-136.
 Science and Technology III. NISMED. 1997. pp. 142-153.
 Chemistry III Textbook. Mapa, Amelia P., Ph.D., et al. 2001. pp. 283-290. *
 EASE Science II. Module 7.
 APEX Chemistry Solutions. Unit 2. Chapter 1. Lessons 6- 7.
Permanent marker pen, juice powder, water, plastic beaker, spoon,
transparent plastic cups
Show video clip on Solubility - YouTube (360p)
Website: https://www.youtube.com/watch?v=JGkmGQ89_SE
The teacher will demonstrate in front of the class following this procedure:
Procedure (Part 1)
1. Label the clear, transparent plastic cups with numbers 1 to 4.
2. Place one spoon of powder juice in plastic cup #1.
3. Add 50 mL water to the juice powder in plastic cup #1 and stir the solution.
4. Place 2 spoons of juice powder in plastic cup #2.
5. Add 50 mL water to the juice powder in the plastic cup #2 and stir the solution.
6. Show the class plastic cup #1 and #2 and ask them to differentiate the two plastic
cups.
Procedure (Part 2)
1. Place one spoon of juice powder in plastic cup #3.
2. Add 20 mL water in plastic cup #3 and stir the solution.
3. Place two spoons of juice powder in plastic cup #4.
4. Add 100 mL water to the juice powder in the plastic cup#4 and stir the solution.
5. Show the class plastic cup #3 and #4 and ask them to differentiate the two plastic
cups. After the demonstration, students should be aware that concentrated solutions
can be prepared either by adding more solute and keeping the amount of solvent the
same or keeping the amount of solute the same and reducing the amount of solvent.
C. Presenting
example
/instances of the
new lesson.
D. Discussing the
new concepts
and practicing
new skills #1.
E. Discussing the
new concepts
and practicing
new skills #2.
F. Developing
mastery
G. Making
generalization
and abstraction
about the lesson
H. Finding
practical
application of
concepts and
skills in daily
living.
I. Evaluating
learning.
J. Additional
activities for
application or
remediation
V. REMARKS
VI. REFLECTION
A. No. of
learners who
earned 80% on
the formative
assessment
B. No. of
learners who
Presenting an example of concentration of solutions that can be found at home.
Present isopropyl alcohol and sachet of vinegar.
Ask: How to describe the concentration of a solution?
One can describe the concentration of a solution qualitatively or quantitatively
through percent by mass or percent by volume.
Show labels of alcohol and vinegar.
Ask: What does 70% ethyl or isopropyl alcohol mean? 70% ethyl or isopropyl alcohol
means the solution contains 70 mL alcohol. What does 5% acidity mean in the label
of vinegar? Vinegar is often labeled as “5% acidity,” which means that it contains 5
grams of acetic acid in 100 g of vinegar. Stress out to the students that in solving for
% by mass and % by volume, one must remember the correct formula.
Percent by mass is the ratio of a measured mass of solute to a measured mass of
solution. On the other hand, percent by volume usually describes solutions in which
both solute and solvent are liquid.
Ask: What to do if the mass or volume of solute and solvent are given but not the
solution?
Just add the mass or volume of solute to get the mass or volume of the solution.
What to do when the mass or volume of the solvent and solute are given but not the
solution?
What is the difference between a concentrated solution from a diluted solution?
How to solve for the percent by mass and percent by volume of a solution?
Solve for the unknown. What is the percent by mass of NaHCO3in a solution
containing 30 g NaHCO3 dissolved in 700 g of water?
What is the percent by volume of ethanol in a solution that contains 55 mL of
ethanol dissolved in 145 mL of water?
What is the percent by mass of the solute sodium hypochlorite in a solution that
contains 50 g of NaOCl dissolved in 2500 g of bleach solution.
require
additional
activities for
remediation
C. Did the
remedial lesson
work? No. of
learner who
caught up with
the lesson
D. No. of learner
who continue to
require
remediation
E. Which of my
teaching
strategies
worked well?
Why did these
work?