Basic Electricity - Senior Secondary 3 - Project and practical work

Project and practical work

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TERM: 1ST TERM

WEEK ELEVEN

Class: Senior Secondary School 3

Age: 17 years

Duration: 40 minutes of 5 periods each

Date:

Subject: BASIC ELECTRICITY

Topic: PROJECT AND PRACTICAL WORK

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

I.) Build a simple electric motor.

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures,

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S

ACTIVITY

STEP 1

INTRODUCTION

The teacher coordinate the students and identify the needed materials and equipments for the project

Students listens attentively to the teacher                                                                          

STEP 2

EXPLANATION

Teacher conduct the project, guiding students along

Students exhibit attentiveness and active engagement

STEP 3

NOTE TAKING

The teacher writes a summarized

note on the board

The students

copy the note in

their books

 

NOTE

PROJECT AND PRACTICAL WORK

Build a simple Electric motor

Materials:

  1. Battery (AA or AAA works well)
  2. Insulated copper wire (thin gauge)
  3. Neodymium magnets (small cylindrical or rectangular)
  4. Cardboard or Styrofoam
  5. Tape (electrical tape or duct tape)
  6. Paperclips or small nails
  7. Sandpaper (optional)

Tools:

  1. Scissors or craft knife
  2. Wire strippers (or use scissors carefully)
  3. Pliers

Procedure:

  1. Prepare the Base: Cut a piece of cardboard or Styrofoam into a rectangular shape to serve as the base for your motor.
  2. Make the Coil: Wrap the insulated copper wire around a cylindrical object like a battery or marker to create a coil. Leave a few inches of wire on each end. You'll need around 100-200 turns depending on the thickness of your wire.
  3. Prepare the Commutator: Cut two small rectangular pieces of cardboard or Styrofoam. Make a small slit in each one and slide the ends of the wire coil through them. These will act as the commutator.
  4. Attach the Commutator: Use tape to secure the cardboard pieces to the base, leaving the coil suspended above the base.
  5. Attach the Magnets: Place two neodymium magnets on either side of the coil, with their poles facing outward. You can tape them down to keep them in place.
  6. Create the Brushes: Straighten out two paperclips or small nails. Bend each one into an L-shape, with one end longer than the other. These will act as the brushes that make contact with the commutator.
  7. Mount the Brushes: Use tape to secure the brushes to the base so that they make light contact with the commutator. Make sure they're positioned on opposite sides.
  8. Test: Connect the ends of the wire coil to the terminals of the battery. The motor should start spinning! If not, check your connections and make sure everything is secure.

EVALUATION: 1. Teacher evaluates the students based on their performance from the project

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively