Lesson Notes By Weeks and Term - Primary 2

Sound energy + Classification of computers by size + Hygiene

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  4. Sound energy + Classification of computers by size + Hygiene

Term: 3rd Term

Week: 3

Class: Primary 2

Age: 7 years

Duration: 40 minutes of 3 periods

Date:

Subject: Basic Science and Technology

Topic:-        Sound energy

          -        Classification of computers by size

          -        Hygiene

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

  1. Identify sounds of different objects and animals
  2. Mention various instruments that can make sounds
  3. Produce local instruments that can make sound
  4. Explain the first, second and third generation of computers
  5. Describe methods through which water can be purified at home

INSTRUCTIONAL TECHNIQUES: Identification, explanation, playway method, questions and answers, demonstration

INSTRUCTIONAL MATERIALS: Charts on uses of energy, bamboo stem, pawpaw stalk, knife, string etc, Some musical instruments like keyboard, flute, saxophone

INSTRUCTIONAL PROCEDURES

PERIOD 1: Sound Energy

PRESENTATION

TEACHER’S ACTIVITY

PUPIL’S ACTIVITY

STEP 1

INTRODUCTION

The teacher revisits the previous lesson on energy

Pupils pay attention

STEP 2

EXPLANATION

She revisits the lesson on sounds made by man, animals and machines

Pupils pay attention and participates

STEP 3

DEMONSTRATION

She mentions the various instruments that can produce sounds

1. Keyboard

2. Guitar

3. Flute

4. Saxophone

5. Trumpet

6. Violin

7. Cello

8. Drums

9. Trombone

10. Clarinet etc

Pupils pay attention and participate

STEP 4

NOTE TAKING

The teacher writes a short note on the board

The pupils copy the note in their books

 

NOTE

Instruments that can produce sounds

  1. Keyboard
  2. Guitar
  3. Flute
  4. Saxophone
  5. Trumpet
  6. Violin
  7. Cello
  8. Drums
  9. Trombone
  10. Clarinet etc

 

EVALUATION:    1. Mention five animals and their sounds

  1. List five musical instruments that produce sounds

CLASS ACTIVITY: Pupils in small groups, produce local musical instruments

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the pupils positively

PERIOD 2 and 3: Classification of computer by generation. Hygiene  

PRESENTATION

TEACHER’S ACTIVITY

PUPIL’S ACTIVITY

STEP 1

INTRODUCTION

The teacher revisits the previous lesson on classification of computers based on size

 

Pupils pay attention

STEP 2

EXPLANATION

The teacher then explains first, second and third generation of computers

 

FIRST GENERATION(1946-1959)

First-generation computers were based on vacuum tubes. These machines were large in size, expensive to operate and instructions were written in machine language. Their computation time was in milliseconds.

 

SECOND GENERATION(1959-1965)

Second-generation computers were based on transistors. They were smaller in size, less expensive and required less maintenance than the first-generation computers. They used the stored program concept. Programs were written in assembly language. The computation time was in microseconds.

 

THIRD GENERATION(1964-1971)

Third-generation computers were characterized by the use of Integrated Circuits. They consumed less power and required low maintenance compared to their predecessors. High-level languages were used for programming. The computation time was in nanoseconds. These computers marked the beginning of commercial production.

Pupils pay attention and participates

STEP 3

DEMONSTRATION

The teacher then explains that water should be made clean and safe before drinking to keep us from falling sick

 

She then explains the various method of purifying water

1. filtration: This is when we remove particles from water using funnels or thin sieves

2. Use of chemicals: this is when we add chemicals like alum to water

3. Boiling: This is when water is cooked in order to make it safe

4. Distillation: this is purifying water by boiling water, cooling it and storing it for later use

 

Pupils pay attention and participate

STEP 4

NOTE TAKING

The teacher writes a short note on the board

The pupils copy the note in their books

 

NOTE

FIRST GENERATION (1946-1959)

First-generation computers were based on vacuum tubes. These machines were large in size, expensive to operate and instructions were written in machine language. Their computation time was in milliseconds.

 

SECOND GENERATION (1959-1965)

Second-generation computers were based on transistors. They were smaller in size, less expensive and required less maintenance than the first-generation computers. They used the stored program concept. Programs were written in assembly language. The computation time was in microseconds.

 

THIRD GENERATION (1964-1971)

Third-generation computers were characterized by the use of Integrated

Circuits. They consumed less power and required low maintenance

compared to their predecessors. High-level languages were used for

programming. The computation time was in nanoseconds. These

computers marked the beginning of commercial production.

 

Methods of purifying water

  1. filtration: This is when we remove particles from water using funnels or thin sieves
  2. Use of chemicals: this is when we add chemicals like alum to water
  3. Boiling: This is when water is cooked in order to make it safe
  4. Distillation: this is purifying water by boiling water, cooling it and storing it for later use

 

EVALUATION:    1. Describe the first generation of computers

  1. Describe the second generation of computers
  2. Describe the third generation of computers
  3. Describe three methods of purifying water

CLASS ACTIVITY: Draw the process of purifying water on a cardboard

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the pupils positively



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