Lesson Notes By Weeks and Term - Senior Secondary 1

Braking system II

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TERM – 3RD TERM

WEEK TWO

Class: Senior Secondary School 1

Age: 15 years

Duration: 40 minutes of 5 periods each

Date:

Subject: AUTO MECHANICAL

Topic: BRAKING SYSTEM II

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

I.) Identify the types of brakes

II.) Mention the functions of braking system

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 identify and discuss the types of brakes.

Students listens attentively to the teacher                                                                          

STEP 2

EXPLANATION

Teacher explain the functions of braking system in motor vehicle

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

BRAKING SYSTEM II

Types of brakes

The following are the types of brakes commonly used in vehicles:

1. Drum Brakes: Drum brakes consist of brake shoes that press against the inner surface of a rotating drum. When the brake pedal is pressed, hydraulic pressure forces the brake shoes outward against the drum, creating friction and slowing down the vehicle.

Drum brakes are often used in the rear wheels of older vehicles and some entry-level or compact cars due to their simplicity and cost-effectiveness.

 

2. Disc Brakes: Disc brakes use brake pads that clamp onto a disc (or rotor) attached to the wheel hub. When the brake pedal is applied, hydraulic pressure squeezes the brake pads against the disc, generating friction and slowing down the vehicle.

3. Anti-lock Braking System (ABS): ABS is a safety feature that prevents the wheels from locking up during hard braking, allowing the driver to maintain steering control.

MABS uses sensors to detect wheel speed and modulates brake pressure to each wheel individually to prevent skidding.

 

4. Regenerative Braking: Regenerative braking is a technology used in hybrid and electric vehicles to recover energy during braking.

When the brake pedal is applied, the electric motor acts as a generator, converting kinetic energy into electrical energy, which is then stored in the vehicle's battery.

Functions of braking system

The following are the functions of a braking system in a vehicle:

  1. Slow Down and Stop: The brakes help the car slow down and stop when you press the brake pedal.
  2. Stay in Control: They let you control the speed and movement of the car, so you can drive safely.
  3. Convert Energy: When you brake, they turn the car's movement energy into heat to make it slow down.
  4. Stay Safe: They help prevent accidents by letting you stop quickly when needed.
  5. Stay Stable: Brakes keep the car stable and prevent it from skidding or sliding when you stop.
  6. Park Safely: The parking brake helps keep the car in place when parked, adding an extra layer of safety.

EVALUATION: 1. Mention the 3 types of brakes

  1. Identify 5 functions of a braking system

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively