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Subject: Biology
Semester: 2
Period: 5
Week: 28
School Name:
Teacher’s Name:
Subject: Biology
Grade Level: Grade 10
Date: Week 28
Lesson Duration: 45 minutes
Week & Term: Week 28, Period 5
Topic: Plant-like Organisms
Sub-topic: Fungi – Characteristics, Classification, Nutrition, Mode of Life, Diseases, and Reproduction
Learning Objectives
By the end of the lesson, students should be able to:
- Describe the general features of fungi.
- Explain the classification and types of nutrition in fungi.
- Differentiate between parasitic and saprophytic fungi.
- Identify common fungal diseases in plants and humans.
- Describe the modes of reproduction in fungi (sexual and asexual).
- Outline the economic importance of fungi.
Previous Knowledge
Students already know:
- Basic plant characteristics and differences from algae
- Examples of micro-organisms
- General idea of diseases caused by living organisms
Instructional Materials
- Charts showing fungal structure and types
- Images or samples of mushrooms, molds, and yeasts
- Diagrams of fungal infections in plants (blight, rust, smuts)
- Posters showing human fungal diseases (ringworm, eczema, athlete's foot)
- Video clips or animations showing fungal reproduction
Lesson Development – ABC Model
A – Anticipation (Warm-up / Starter)
Time: 5–10 mins
Ask:
- “Have you ever seen greenish or white fuzz on bread?”
- “Do you know anyone who has had ringworm or athlete’s foot?”
Display pictures of moldy bread, mushrooms, and yeast infections to spark curiosity.
B – Building Knowledge (Main Lesson Body)
Time: 25–30 mins
Teacher explains:
General Characteristics of Fungi
- Fungi are non-green organisms that do not make their own food.
- They are mostly multicellular (except yeast) and have cell walls made of chitin.
- They reproduce using spores.
Classification of Fungi
- Based on structure and reproduction, fungi are classified into groups such as molds, yeasts, mushrooms, and smuts.
Nutrition in Fungi
- Saprophytic fungi feed on dead organic matter. Example: bread mold.
- Parasitic fungi live on or in living hosts and cause diseases. Example: Candida, Trichophyton.
- Symbiotic fungi (e.g. lichens) live in partnership with other organisms.
Mode of Life
- Fungi are either free-living or depend on other organisms.
- They absorb nutrients from their environment using enzymes.
Diseases Caused by Fungi
- In plants:
- Blight – rapid browning and death of leaves
- Rust – powdery, reddish spots on leaves
- Smuts – affect cereal crops
- In humans:
- Athlete’s foot
- Ringworm
- Yeast infections
- Eczema (dishcloth)
Reproduction in Fungi
- Asexual reproduction through spore formation, budding (yeast), or fragmentation
- Sexual reproduction through fusion of hyphae and spores under special conditions
Economic Importance
- Positive: Yeast in baking, wine and alcohol production; antibiotics (penicillin); decomposing waste
- Negative: Crop loss, food spoilage, infections in humans and animals
Learners’ Activities (Expanded):
- Match fungal diseases to the plant or body part they affect.
- Draw and label structure of a fungus (hyphae, spores, etc.)
- Sort images of fungi into saprophytic, parasitic, and symbiotic categories.
- In groups, create a skit or poster on the dangers of fungal infections.
- View and describe a short video of yeast budding or mold growing.
Assessment Checks:
- Short-answer questions on classification and nutrition
- Multiple-choice quiz on fungal disease identification
- Labeling activity for fungal anatomy
Notes (Expanded & Detailed)
Fungi are unique organisms that live by breaking down organic material. They do not have chlorophyll and cannot perform photosynthesis. Their body is usually made up of thread-like structures called hyphae, and a network of hyphae is known as mycelium.
Fungi can feed by absorbing nutrients from dead matter (saprophytes) or living hosts (parasites). Fungi like Trichophyton cause ringworm and athlete’s foot in humans. Plant fungi cause major damage to crops, like smuts in maize or rust in wheat.
They reproduce using spores, which spread through air and moisture. Some fungi reproduce asexually by budding or fragmentation, while others reproduce sexually when two hyphae fuse.
Though fungi cause diseases, they also help humans by making bread rise (yeast), producing antibiotics (penicillin), and breaking down waste material.
C – Consolidation (Conclusion & Assessment)
Time: 5–10 mins
Ask students to:
- Name two beneficial fungi and two harmful ones
- Compare saprophytic and parasitic fungi
- Recap the major fungal diseases they learned
Evaluation Method (Expanded)
- Fill-in-the-blank worksheet on classification and reproduction
- Group quiz bowl: “Name That Fungi!”
- Quick drawing activity: fungal disease and prevention methods
Assignment (Expanded)
- Interview a parent or health worker about any fungal infections they know and write a short report.
- Draw and label the life cycle of a common fungus, like yeast or bread mold.
- Write a paragraph explaining why fungi are both friends and enemies to humans.
Follow-up Activity (if any)
Prepare simple “fungus diaries” to track any mold growth on bread over a few days at home (supervised and safe).
Differentiation / Inclusive Strategies
- Struggling Learners: Use visual diagrams and repetition in simpler terms
- Advanced Learners: Research how penicillin was discovered and its global impact
- Students with Disabilities: Tactile learning tools and audio-labeled diagrams
Teacher’s Reflection (After Class)
• What worked well?
• What needs improvement?
• Students’ engagement level: □ High □ Medium □ Low
• Next steps: Proceed to Photosynthesis and Nutrient Importance