Teaching through Practical & Laboratory work – Integration theory with Practical work Integration: bring together the part of.

Teaching through Practical & Teaching through Practical & Laboratory work – Laboratory work –

Integration theory with Practical Integration theory with Practical workwork

Integration: bring together the part of

Dilip Kumar PaulFaculty of TTTC

B.Sc.Engg(EEE).

M.Engg.

PGCE(U.K.)

M.Ed.

The Management of LearningThe Management of Learning

1.1. Methods of DeliveryMethods of Delivery

2.2. Resources to Supplement Resources to Supplement StrategiesStrategies

1.1. Methods of Delivery:Methods of Delivery:

A teaching strategy is defined as “a A teaching strategy is defined as “a combination of student activities combination of student activities supported by the use of appropriate supported by the use of appropriate resources to provide a particular resources to provide a particular learning experience (process) and or learning experience (process) and or to bring about the desired learning to bring about the desired learning (product)”.(product)”.

Notice, in the definition, the emphasis Notice, in the definition, the emphasis

is placed firmly on the needs of the is placed firmly on the needs of the

student not on the teacher.student not on the teacher.

Some of the popular strategies areSome of the popular strategies are::

LectureLecture

Question & AnswerQuestion & Answer

Group DiscussionGroup Discussion

PracticalPractical

TutorialTutorial

Individual LearningIndividual Learning

DemonstrationDemonstration

SeminarSeminar

Case StudyCase Study

Role PlayRole Play

ProjectProject

AssignmentAssignment

Problem SolvingProblem Solving

Practical:Practical:

Real or simulated (pretend to have or feel) Real or simulated (pretend to have or feel)

situations with student learning from situations with student learning from

experience.experience.

Demonstration:Demonstration:

Teacher shows the basic steps and sequence Teacher shows the basic steps and sequence

of a skill, or the main attributes of a concept, of a skill, or the main attributes of a concept,

with student watching.with student watching.

Discussion on a basic topic Discussion on a basic topic “Ohm’s Law”“Ohm’s Law”

Theory:Theory:

Current flowing through a circuit is directly Current flowing through a circuit is directly

proportional to the voltage applied across the proportional to the voltage applied across the

circuit and inversely proportional to the circuit and inversely proportional to the

resistance of the circuit in a certain resistance of the circuit in a certain

temperature. temperature. Ammeter Ammeter

Voltmeter ResistanceVoltmeter Resistance

▪▪ What is the What is the Conception Conception (an idea or (an idea or

mental picture of a group or class of mental picture of a group or class of

objects formed by combining all their objects formed by combining all their

objects)objects) of this theory ?of this theory ?

▪▪ Perception:Perception: (the ability of mind to refer (the ability of mind to refer

sensory information to an external object sensory information to an external object

as its cause) as its cause)

▪▪ To take perception let us do a To take perception let us do a Laboratory Laboratory

or Practical or Experiment. or Practical or Experiment.

Subject Name:Subject Name: Experiment No:Experiment No:

Name of the Experiment:Name of the Experiment: Ohm’s Law (or Ohm’s Law (or Verification of Verification of Ohm’s Law) Ohm’s Law)

Objectives:Objectives: 1. Verification of Ohm’s Law1. Verification of Ohm’s Law

2. Knowing the connection of ammeter 2. Knowing the connection of ammeter & & `̀ voltmeter in the circuit voltmeter in the circuit

Required equipment & Materials:Required equipment & Materials:

1.1. Ammeter (dc 0 – 1 amps)Ammeter (dc 0 – 1 amps) 1 no.1 no.

2.2. Voltmeter (dc 0 – 30 volts)Voltmeter (dc 0 – 30 volts) 1 no.1 no.

3.3. Resistances (50, 200 ohms)Resistances (50, 200 ohms) 1 no each1 no each

4.4. Power supply unit (dc 0 – 30 volts)Power supply unit (dc 0 – 30 volts) 1 no.1 no.

5.5. WireWire as requiredas required

Procedure:1. Collect all the equipment & materials

2. According to the circuit diagram drawn below connect

ammeter, voltmeter and resistance to the power supply unit.

Ensure that ammeter connection with the load in series and

voltmeter in parallel. Use right polarity in the connection of dc

meters.

Ammeter

PSU Voltmeter Resistance

3.3. Connect 200 Ω resistance in the circuit and then supply the Connect 200 Ω resistance in the circuit and then supply the

voltage. Take ammeter and voltmeter reading precisely and voltage. Take ammeter and voltmeter reading precisely and

then record in the data table given below.then record in the data table given below.

4.4. Increasing the supply voltage and then take 4/5 readings of Increasing the supply voltage and then take 4/5 readings of

ammeter and voltmeter. ammeter and voltmeter.

5.5. Repeat 3 & 4 points for 50 Ω resistance.Repeat 3 & 4 points for 50 Ω resistance.

6.6. Draw V – I curve taken data from the data table in the graph Draw V – I curve taken data from the data table in the graph

paper.paper.

Data Table

Serial No.

Voltmeter Reading

Ammeter reading in amps

50 Ω 200 Ω

1

2

3

4

5

6

WorksheetWorksheet

1.1. Is there any changes of the current when changing Is there any changes of the current when changing

voltage for 200 Ω resistance?voltage for 200 Ω resistance?

2.2. Is there any changes of the current when changing Is there any changes of the current when changing

resistance when keeping voltage constant?resistance when keeping voltage constant?

3.3. Is Ohm’s Law verified by This experiment? Mention Is Ohm’s Law verified by This experiment? Mention it.it.

4.4. If 1 amp current flows through 100 Ω resistance thenIf 1 amp current flows through 100 Ω resistance then

(a)(a) What is the supply voltage ?What is the supply voltage ?

(b)(b) For the same supply voltage what is the For the same supply voltage what is the

current for current for

50 Ω resistance?50 Ω resistance?

Worksheet:

A worksheet is an incomplete handout

which the student is expected to

complete during or straight after the

lesson. They can be used by individual

students for individual attention. They

allow students to work at their own pace,

in an independent manner.

There are several types of worksheet:There are several types of worksheet:

1.1. Job sheet:Job sheet: which contain instructions or which contain instructions or

specification so that a student can complete a specification so that a student can complete a

piece of work.piece of work.

2.2. Operation sheets:Operation sheets: are used to explain a process are used to explain a process

or series of operations e.g. How to take blood or series of operations e.g. How to take blood

pressure or how to operate a photocopier etc.pressure or how to operate a photocopier etc.

3.3. Assignment sheet:Assignment sheet: usually consisting of a usually consisting of a

number of questions, problems or tasks to be number of questions, problems or tasks to be

performed.performed.

4.4. Experiment sheet:Experiment sheet: frequently used in laboratory frequently used in laboratory

work.work.

Teacher’s ResponsibilityTeacher’s Responsibility• Group size should be small preferably 2 (two).Group size should be small preferably 2 (two).• Ensure that all students can participate Ensure that all students can participate

actively.actively.• Ensure health and safety.Ensure health and safety.• Assist each group.Assist each group.• Guiding groups of students but not telling Guiding groups of students but not telling

them every thing.them every thing.• Ensure student perception either by Ensure student perception either by

worksheet or by conclusion (written by worksheet or by conclusion (written by student).student).

• Ensure feedback by returning back to the Ensure feedback by returning back to the learner. learner.

Learner’s Responsibility

• Working at own pace.

• Learning from each other by pooling knowledge.

• Learning and displaying group skills.

• Working at the pace of the group.

• Seek assistance from your teacher if needed.

• Take care for delicate and dangerous experiment.