L6 - U5 - Lesson 1 Microorganisms

Lesson 1     Lesson 2     Lesson 3     Lesson 4     Lesson 5

ESL Kids & Teens Intermediate (B1-B2) Unit: Microorganisms

Explore the World of Tiny Life Forms Through Engaging ESL Lessons!

About This ESL Unit

This fascinating and educational unit from SuperEnglishESL.com introduces students to the incredible world of microorganisms. Through interactive reading activities, engaging discussions, and structured grammar exercises, students will explore various types of microbes, their roles in ecosystems, and their impact on human health. By the end of the unit, students will have expanded their vocabulary, improved their grammar skills, and gained valuable knowledge about the unseen life forms around us.

Designed for 1:1 online lessons, group classes, and traditional classrooms, this unit enhances reading comprehension, vocabulary acquisition, grammar accuracy, and speaking confidence through exciting real-world applications and interactive activities.


Lesson Overviews

Lesson 1: Introduction to Microorganisms

Students begin their journey by learning what microorganisms are, the different types of microbes, and how they impact the world around us.

Lesson Features:
✔️ Warm-up: Articulation game – students describe words until others guess
✔️ Reading & Discussion: Overview of microbes, including bacteria, viruses, fungi, algae, and protozoa
✔️ Vocabulary Focus: microorganism, microbiology, reproduce, cell
✔️ Grammar & Sentence Structures: Third conditional (If + past perfect → would have + past participle)
✔️ Interactive Elements: Role-play a discussion on good vs. bad microbes
✔️ Real-Life Applications: Discussing how microorganisms affect everyday life, such as food production and disease


Lesson 2: Viruses – How They Infect and Spread

This lesson focuses on viruses, how they enter the body, spread, and how the immune system fights them.

Lesson Features:
✔️ Warm-up: “Which one is different?” – Categorizing different microbes
✔️ Reading & Discussion: How viruses infect hosts, mutate, and are fought by the immune system
✔️ Vocabulary Focus: infect, host, mutate, immune
✔️ Grammar & Sentence Structures: Third conditional practice for hypothetical past events
✔️ Interactive Elements: Role-play a conversation about getting sick and taking medicine
✔️ Real-Life Applications: Understanding how vaccines work and the importance of hygiene


Lesson 3: Bacteria – The Good and The Bad

Students dive into the world of bacteria, learning about their beneficial and harmful effects.

Lesson Features:
✔️ Warm-up: “Would You Rather?” – Fun microbial scenarios
✔️ Reading & Discussion: Decomposers, producers, and harmful bacteria
✔️ Vocabulary Focus: decomposer, master, photosynthesis, pathogen
✔️ Grammar & Sentence Structures: Third conditional – how actions affect past events
✔️ Interactive Elements: Role-play a doctor-patient conversation about bacterial infections
✔️ Real-Life Applications: Understanding the role of bacteria in digestion, medicine, and the environment


Lesson 4: The Immune System – How Our Bodies Defend Against Microbes

Students learn about the body’s natural defense system and how it protects against harmful microorganisms.

Lesson Features:
✔️ Warm-up: Category game – Naming body defenses
✔️ Reading & Discussion: White blood cells, antibodies, and how the immune system fights infections
✔️ Vocabulary Focus: defense, mechanism, foreign, invade
✔️ Grammar & Sentence Structures: Third conditional for past unreal situations
✔️ Interactive Elements: Role-play a conversation about boosting immunity through lifestyle choices
✔️ Real-Life Applications: Discussing how diet, exercise, and vaccines help strengthen the immune system


Lesson 5: Microorganisms Assessment & The Role of Microbes in the World

The final lesson serves as a review and assessment of everything students have learned about microorganisms.

Lesson Features:
✔️ Warm-up: Word guessing game using unit vocabulary
✔️ Assessment Tasks:

  • Vocabulary matching and fill-in-the-blanks
  • Grammar exercises using the third conditional
  • Comprehension questions about microbes and immunity
    ✔️ Reading & Discussion: The history of microbes, their role in ecosystems, and how they survive in extreme conditions
    ✔️ Interactive Elements: Debate – “Are all microbes good or bad?”
    ✔️ Real-Life Applications: Discussing microbes in space and their role in scientific research

Who Is This Unit For?

ESL learners at B1-B2 levels (Intermediate to Upper-Intermediate)
Kids and Teens in online 1:1 lessons, group classes, or traditional classrooms
Teachers looking for structured, engaging, and interactive lessons about science and biology


Downloadable Materials

📄 Lesson previews & worksheets
🎲 Games & vocabulary activities
📚 Reading passages & discussion questions
🔊 Pronunciation & sentence-building exercises


Teacher Tips

📌 Use real-life examples of bacteria, fungi, and viruses to help students relate to the topic.
📌 Encourage students to share personal experiences with getting sick and how they recovered.
📌 Have students research and present on a famous microbe-related discovery.


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