Lesson Notes By Weeks and Term - Senior Secondary 1

Microorganisms around us

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TERM – 3RD TERM

WEEK THREE

Class: Senior Secondary School 1

Age: 15 years

Duration: 40 minutes of 5 periods each

Date:

Subject: Biology

Topic: MICROORGANISMS AROUND US

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

  1. Define microorganisms
  2. Identify groups of microorganisms.

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 introduces microorganisms to the students using pictures provided.

 

Students pay

attention

STEP 2

EXPLANATION

Teacher identify the groups of microorganisms and give examples of each group.

Students pay

attention and

participate

STEP 3

NOTE TAKING

The teacher writes a summarized

note on the board

 

The students

copy the note in

their books

 

NOTE

MICROORGANISMS AROUND US

Microorganisms are tiny living organisms that include bacteria, viruses, fungi, and protozoa. They are too small to be seen with the naked eye and play crucial roles in various ecological processes, both beneficial and harmful to humans and the environment.

Groups of microorganisms

Microorganisms can be broadly categorized into several groups based on their characteristics and features. The main groups include:

  1. Bacteria: Single-celled organisms that lack a nucleus and membrane-bound organelles. They have diverse shapes and sizes and can be found in various environments.

       

  1. Archaea: Similar to bacteria in size and simplicity, archaea differ in their genetic makeup and cell membrane composition. They are often found in extreme environments like hot springs and deep-sea vents.

       

       3. Fungi: Multicellular organisms with a distinct nucleus and membrane-bound organelles. Fungi include molds, yeasts, and mushrooms. They play crucial roles in decomposition               and nutrient cycling.

        

       4. Protists: Diverse group of mostly single-celled organisms with a nucleus. Protists can be algae, protozoa, or slime molds. They are found in aquatic environments and damp                 habitats.

        Algae

  1. Viruses: Not considered living organisms, viruses are tiny particles containing genetic material (DNA or RNA) surrounded by a protein coat. They rely on host cells to replicate.

        

EVALUATION: 1. What are microorganisms?

  1. Identify the groups of microorganisms with examples each.

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively