Living Things and their Environment

The Cell - The light microscope
The Cell - Functions of microscope parts
The Cell - Use and care for a light microscope
The Cell - Using the light microscope
The Cell - Preparing plant cell specimens
The Cell - Observing plant cells
The Cell - Components of a plant cell

By the end of the lesson, the learner should be able to:
- Identify the parts of a light microscope
- State the functions of the parts of a light microscope
- Handle the light microscope with care and precision

In groups, learners are guided to:
- Observe a real light microscope and identify its parts
- Use reference materials to search for information on parts of a light microscope
- Draw a well-labelled diagram of a light microscope
- Take turns to locate parts on the actual microscope

What is the use of a light microscope?

- Spotlight Integrated Science Learner's Book Grade 8 pg. 82
- Light microscope
- Charts showing parts of a microscope
- Digital devices
- Spotlight Integrated Science Learner's Book Grade 8 pg. 84
- Function charts
- Spotlight Integrated Science Learner's Book Grade 8 pg. 86
- Lens paper
- Microscope cover
- Spotlight Integrated Science Learner's Book Grade 8 pg. 87
- Transparent paper with writings
- Glass slides
- Spotlight Integrated Science Learner's Book Grade 8 pg. 89
- Onion bulb
- Glass slides and cover slips
- Distilled water
- Forceps, scalpel, mounted needle
- Spotlight Integrated Science Learner's Book Grade 8 pg. 90
- Prepared onion slides
- Iodine solution
- Droppers
- Spotlight Integrated Science Learner's Book Grade 8 pg. 91
- Plant cell charts
- Carton box, manila paper
- Pencil colours
- Scissors, glue

- Observation - Oral questions - Drawing assessment

Living Things and their Environment

The Cell - Observing animal cells
The Cell - Making animal cell models
The Cell - Functions of cell components
The Cell - Functions of vacuole and tonoplast
The Cell - Similarities between plant and animal cells
The Cell - Differences between plant and animal cells
The Cell - Meaning of magnification
The Cell - Calculating magnification
The Cell - Solving magnification problems

By the end of the lesson, the learner should be able to:
- Observe animal cells from permanent slides under a light microscope
- Draw and label components of an animal cell
- Relate animal cell study to understanding human body tissues

In groups, learners are guided to:
- Observe permanent slides of animal cells under light microscope
- Identify cell membrane, cytoplasm, and nucleus
- Draw well-labelled diagrams of animal cells
- Compare observations with reference materials

What components make up an animal cell as seen under a light microscope?

- Spotlight Integrated Science Learner's Book Grade 8 pg. 93
- Light microscope
- Permanent slides of animal cells
- Lens paper
- Charts
- Spotlight Integrated Science Learner's Book Grade 8 pg. 94
- Carton box
- Manila papers
- Pencil colours
- Scissors, glue, scalpel
- Spotlight Integrated Science Learner's Book Grade 8 pg. 95
- Digital devices
- Reference books
- Crossword puzzle worksheets
- Spotlight Integrated Science Learner's Book Grade 8 pg. 96
- Plant cell diagrams
- Reference materials
- Spotlight Integrated Science Learner's Book Grade 8 pg. 97
- Plant and animal cell models
- Comparison charts
- Digital devices
- Spotlight Integrated Science Learner's Book Grade 8 pg. 98
- Spotlight Integrated Science Learner's Book Grade 8 pg. 99
- Magnification pictures
- Light microscope
- Spotlight Integrated Science Learner's Book Grade 8 pg. 100
- Exercise books
- Calculators
- Problem worksheets
- Calculators
- Exercise books

- Drawing assessment - Observation - Written questions

Living Things and their Environment

The Cell - Uses of light microscope in healthcare
The Cell - Uses of light microscope in research and industry
The Cell - End of sub-strand assessment
Structure of the cell membrane
Properties of the cell membrane
Effects of heat on cell membrane - Potato experiment
Effects of heat on cell membrane - Beetroot experiment
Effects of dilute acids and alkalis on cell membrane
Demonstrating diffusion using perfume
Role of diffusion in gaseous exchange
Role of diffusion in absorption and plants
Factors affecting diffusion

By the end of the lesson, the learner should be able to:
- Explain uses of the light microscope in healthcare
- Describe how microscopes help identify diseases
- Relate microscope use to hospital laboratory work and disease diagnosis

In groups, learners are guided to:
- Discuss how scientists use microscopes to study micro-organisms
- Explain how laboratory professionals identify diseases using microscopes
- Search the Internet for information on microscope uses in medicine
- Write notes on healthcare applications

How do light microscopes contribute to healthcare?

- Spotlight Integrated Science Learner's Book Grade 8 pg. 101
- Digital devices
- Reference books
- Healthcare posters
- Spotlight Integrated Science Learner's Book Grade 8 pg. 102
- Reference materials
- Assessment worksheets
- Spotlight Integrated Science Learner's Book Grade 8 pg. 103
- Assessment papers
- Drawing materials
- Exercise books
- Spotlight Integrated Science Learner's Book Grade 8 pg. 104
- Liquid soap, water, sugar
- Straws, cotton thread
- Shallow tray
- Spotlight Integrated Science Learner's Book Grade 8 pg. 107
- Cell membrane diagrams
- Reference books
- Spotlight Integrated Science Learner's Book Grade 8 pg. 108
- Potatoes, cork borer
- Concentrated sugar solution
- Beakers, petri dishes
- Spotlight Integrated Science Learner's Book Grade 8 pg. 109
- Beetroot, cork borer
- Water baths, thermometers
- Boiling tubes, test tube rack
- Spotlight Integrated Science Learner's Book Grade 8 pg. 111
- Beetroot cores
- Dilute HCl, dilute NaOH
- Test tubes, syringes
- Spotlight Integrated Science Learner's Book Grade 8 pg. 113
- Perfume or deodorant spray
- Stopwatch
- Notebooks
- Spotlight Integrated Science Learner's Book Grade 8 pg. 114
- Gaseous exchange diagrams
- Spotlight Integrated Science Learner's Book Grade 8 pg. 115
- Plant diagrams
- Reference materials
- Spotlight Integrated Science Learner's Book Grade 8 pg. 116
- Charts

- Written notes - Oral presentation - Research assessment

Living Things and their Environment

Demonstrating osmosis using visking tubing
Demonstrating osmosis using Irish potato
Demonstrating osmosis using banana peel strips
Factors affecting osmosis
Role of osmosis in water absorption and stomata
Role of osmosis in osmoregulation and plant support
Importance of diffusion and osmosis
Introduction to the menstrual cycle

By the end of the lesson, the learner should be able to:
- Define osmosis
- Demonstrate osmosis using visking tubing
- Connect osmosis to how dried fruits swell when soaked in water

In groups, learners are guided to:
- Tie one end of visking tubing and fill with concentrated sugar solution
- Immerse the tubing in a beaker of distilled water
- Observe changes after thirty minutes
- Explain movement of water molecules through the membrane

How do water molecules move through a semi-permeable membrane?

- Spotlight Integrated Science Learner's Book Grade 8 pg. 118
- Visking tubing
- Concentrated sugar solution
- Distilled water, beaker
- Spotlight Integrated Science Learner's Book Grade 8 pg. 120
- Irish potatoes, cork borer
- Distilled water
- Ruler, boiling tubes
- Spotlight Integrated Science Learner's Book Grade 8 pg. 121
- Raw green banana peel
- Concentrated salt solution
- Beakers, scalpel
- Spotlight Integrated Science Learner's Book Grade 8 pg. 123
- Digital devices
- Reference books
- Charts
- Spotlight Integrated Science Learner's Book Grade 8 pg. 124
- Plant diagrams
- Reference materials
- Spotlight Integrated Science Learner's Book Grade 8 pg. 125
- Young plants
- Reference books
- Spotlight Integrated Science Learner's Book Grade 8 pg. 126
- Assessment worksheets
- Spotlight Integrated Science Learner's Book Grade 8
- Charts on menstrual cycle

- Practical report - Observation - Written explanation

Living Things and their Environment

Phases of the menstrual cycle
Ovulation and luteal phase
Irregular periods and bleeding
Menstrual pain and discomfort
Managing menstrual cycle challenges
Menstrual hygiene management
The male reproductive cells
The female reproductive cell
The process of fertilisation
Cell division after fertilisation
Implantation
Introduction to STIs
Symptoms of HIV/AIDS
Symptoms of gonorrhea, syphilis, and herpes
Prevention of STIs - Abstinence and faithfulness
Prevention of STIs - Other measures

By the end of the lesson, the learner should be able to:
- Describe the phases of the menstrual cycle
- Explain what happens during menstruation phase
- Understand that cycle phases are natural body rhythms like sleep patterns

In groups, learners are guided to:
- Study diagrams showing phases of the menstrual cycle
- Discuss the menstruation phase (days 1-5)
- Explain the follicular phase and its characteristics
- Record notes on each phase

What are the different phases of the menstrual cycle?

- Spotlight Integrated Science Learner's Book Grade 8
- Menstrual cycle diagrams
- Digital devices
- Charts
- Ovulation charts
- Reference materials
- Reference books
- Health education materials
- Health education charts
- Health education materials
- Planning worksheets
- Sanitary products samples
- Digital devices
- Sperm cell diagrams
- Reference books
- Egg cell diagrams
- Fertilisation diagrams
- Cell division diagrams
- Implantation diagrams
- HIV/AIDS education materials
- Prevention posters

- Diagram labelling - Written notes - Oral questions