An Example of a Daily Lesson Plan using the 4-phase Teaching Model/Learning Cycle

 

Subject:                            Physics

Class:                                          Form 4A

Date:                                          7 April 2008

Time:                                          11.35 am – 12.15 pm (40 minutes)

No. of students:              20 students

Learning Area              :              Forces and Pressure

Learning Objective:              Understanding Pressure in Liquids

 

Learning Outcomes:              At the end of the lesson, a student is able to:

 

                                          A              Master content knowledge

  1. State that depth is directly proportional to pressure in a liquid
  2. Sate that density is directly proportional to pressure in a liquid
  3. Construct the formula P=hρg from both the relationships (a) and (b) above, where P is pressure in liquid, h is depth, ρ is density of liquid and g is the acceleration due to gravity and the equation P=F/A where F is force and A is contact area.
  4. Solve 2 numerical problems involving the equation P=hρg

 

B              Master Scientific Skills/TSTS

  1. design and carry out an experiment in groups to find the relationship between pressure in liquid, depth and density of liquid given a mineral bottle, tray and oil,

 

C              Demonstrate Scientific Attitudes and Noble Values

a.   Actively participate in carrying out the experiment based on agreed upon procedures as a team.

b.   Appreciate the value of time by carrying out the experiment briskly and being on task all the time.

             

Scientific Concepts:             

Pressure in liquids

  1. acts in all direction
  2. increases with depth
  3. increases with density

 

Materials, equipments and resource materials:

Mineral water bottles – 4 units

Oil – 1 bottle

Tray 2 units

Plastic bag 4 units

Notes on PowerPoint slides

 

Consideration of Safety Precautions:

None

 

Prior Knowledge:

Students have already learned the operational definition of pressure, P=F/A, and have applied it in solving problems involving pressure exerted by solids on a surface.

 

 

Phase

Content

Teaching and Learning Activities

Notes

Teacher Activities

Student Activities

Introduction/Eliciting Ideas

(5 minutes)

Definition of pressure, P=F/A

Direction of pressure in liquids and factors that might affect pressure in liquids

Students experience whilst swimming (if any)

Make connection to students’ prior knowledge on pressure by asking questions

Elicit students’ ideas about whether there is pressure in liquids, factors that might affect pressure in liquids and how these factors affect the pressure.

 

Students respond to teacher’s questions

 

Strategy/Technique: Whole class Q&A

 

Structuring/ Restructuring of Ideas

(20 minutes)

Pressure in liquids

  1. a. acts in all direction
  2. is directly proportional to depth
  3. is directly proportional to density
  4. can be written as P=hρg

Show a plastic bag full of water and ask students to predict which way the water will squirt out when holes are poked.

 

Ask two central guiding questions:

How does pressure in liquid relate to depth?

 

How does pressure in liquid relate to density?

 

Ask students for their hypotheses, the design of an experiment to investigate the relationship, and the variables involved.

 

Debriefing

 

 

Guide students to construct the equation P=hρg from the two relationships

Students make prediction, inference, observation and conclusion

 

 

 

 

 

Students make hypotheses, give suggestions on the design of an experiment and state all the variables involved.

 

Then students carry out the activity to answer the central guiding questions.

 

Students make conclusion and construct P=hρg

 

Strategy/Technique:

Interactive demonstration by teacher

 

 

 

 

 

 

 

 

An inquiry activity in groups.

 

 

Application of Ideas

(10 minutes)

1. The high position of water tank causes higher water pressure for distribution. 

2. Shapes of container do not affect pressure

3. One problem involving the use of P=hρg

Show problems on slides

(refer to Appendix 1)

 

Students solve problems in groups

 

Students present their solutions

Strategy/TechniquesGroup discussion followed by group presentation

 

Resources: PP slides

 

Reflection/

Closure

(5 minutes)

Pressure in liquids

  1. a. acts in all direction

b. is directly proportional to depth

c. is directly proportional to density

d. can be written as P=hρg

Let students conclude by stating the main ideas and relating to students initial ideas

Show summary of main ideas on slides

Give reading assignment on gas pressure for next lesson

Written problem solving using P=hρg in exercise book

Students conclude the lesson by verbally stating the main ideas and relating to their initial ideas

Strategy/Techniques:

Whole class Q&A

 

Resources: PP slides