LESSON PLAN
TOPIC: OSMOSIS AND OSMOTIC PRESSURE
Teacher
School
Subject
Date
Grade
: Alifia Nuzul Pramadhanty
: University of Tsukuba Senior High School at Sakado
: Chemistry
: Feb 20th 2020
:2
A. Objective
At the end of the lesson, each student is expected to:
1. Understand the concept of osmosis
2. Understand the concept of osmotic pressure
3. Relate the importance of osmosis and osmotic pressure to human daily life
B. Subject Matter
1. Topic
: Colligative Properties of Solution
Subtopic
: Osmosis and Osmotic Pressure
2. References
:
 Chemistry: The Molecular Nature of Matter by Brady, et al.
 Chemistry by Raymond Chang
3. Materials
: Projector, white screen, computer, power point presentation,
student worksheet
C. Learning Activities
1. Learning Approach
2. Learning Model
3. Learning Methods
demonstration
: Contextual Approach
: Predict, Observe, Explain (POE)
: Group discussion, question and answer, lecture,
D. Procedure of the Lesson
The lesson takes 50 minutes. Table 1 summarizes the procedure of the lesson.
Table 1. Procedure of the Lesson
Activities
Description
Time
Allotment
Introduction
 Teacher opens the class, greets the students, and
checks students attendance.
 Teacher provides the initial apperception to
students and recall the topic from the last class
 Teacher provides an overview of motivation in
the form of the importance of osmosis and
osmotic pressure to human daily life
 Teacher tells the learning objectives
5 mins
Activities
Predict
Observe
Explain
Generalization
and Elaboration
Closing
Description
 Teacher explains about the osmosis in general
 Teacher gives a worksheet about the eggs in
various kind of solutions experiment
 Student makes a prediction about what will
happen in the experiment in their group
discussion
 Teacher shows the experiment result in front of
the class
 Student makes a prediction why the eggs has
various size
 Student explains the phenomenon by their
current knowledge
 Teacher makes a conclusion about the the
experiment
 Teacher explains about the osmotic pressure
and the relation of it with osmosis
 Teacher explains about the reverse osmosis
 Teacher explains about the benefits from the
application of osmosis to human daily life.
 Closing statement
 Greetings
Time
Allotment
10 mins
5 mins
10 mins
15 mins
5 mins