Living Things and Their Environment

The interdependence of life - Components of the environment
The interdependence of life - Competition

By the end of the lesson, the learner should be able to:

- Define ecosystem, ecology and environment
- Identify biotic and abiotic components
- Show interest in interactions in ecosystems

In groups, learners are guided to:
- Study diagrams of ecosystems
- Identify living and non-living components
- Discuss relationships between organisms

What is an ecosystem?

- Textbooks (KLB Integrated Science pg. 115)
- Digital resources
- Charts of ecosystems
- Textbooks (KLB Integrated Science pg. 116)
- Reference books

- Written assessment - Oral questions - Observation

Living Things and Their Environment

The interdependence of life - Predation
The interdependence of life - Parasitism

By the end of the lesson, the learner should be able to:

- Define predation, predator and prey
- Explain adaptations of predators and prey
- Show interest in predator-prey relationships

- Define parasitism, parasite and host
- Explain effects of parasites on hosts
- Show interest in parasite-host relationships

In groups, learners are guided to:
- Search for information on predation
- Discuss adaptations of predators and prey
- Analyze predator-prey population dynamics
- Search for information on parasitism
- Discuss types of parasites affecting humans and animals
- Analyze effect on distribution of organisms

How does predation affect population dynamics?
How do parasites affect their hosts?

- Textbooks (KLB Integrated Science pg. 117)
- Digital resources
- Videos on predation
- Textbooks (KLB Integrated Science pg. 119)
- Digital resources
- Charts on parasitism

- Written assessment - Oral questions - Group discussions

Living Things and Their Environment

The interdependence of life - Symbiosis
The interdependence of life - Saprophytism

By the end of the lesson, the learner should be able to:

- Define symbiosis
- Describe examples of symbiotic relationships
- Appreciate mutual benefits in symbiosis

In groups, learners are guided to:
- Search for information on symbiotic relationships
- Discuss root nodules, lichens, and ox-pecker relationships
- Analyze benefits to each partner

How do organisms benefit from symbiotic relationships?

- Textbooks (KLB Integrated Science pg. 120)
- Digital resources
- Charts on symbiosis
- Textbooks (KLB Integrated Science pg. 121)
- Photographs of fungi

- Written assessment - Oral questions - Group discussions

Living Things and Their Environment

The interdependence of life - Temperature effects

By the end of the lesson, the learner should be able to:

- Measure environmental temperature
- Explain effects of temperature on organisms
- Show interest in abiotic factors

In groups, learners are guided to:
- Suspend thermometer to measure air temperature
- Measure soil and water temperature
- Discuss effects of temperature on organisms

How does temperature affect living organisms?

- Textbooks (KLB Integrated Science pg. 122)
- Thermometers
- Water in basin
- Digital resources

- Practical skills - Written assessment - Oral questions

Living Things and Their Environment

The interdependence of life - Light effects
The interdependence of life - Atmospheric pressure

By the end of the lesson, the learner should be able to:

- Explain how light affects organisms
- Describe importance of light intensity, quality and duration
- Show interest in light as an ecological factor

In groups, learners are guided to:
- Discuss aspects of light affecting organisms
- Explain how light affects plants and animals
- Discuss measurement of light in ecosystems

How does light affect organisms in an ecosystem?

- Textbooks (KLB Integrated Science pg. 123)
- Digital resources
- Light meter if available
- Secchi disc
- Textbooks (KLB Integrated Science pg. 124)
- Barometer if available

- Written assessment - Oral questions - Group discussions

Living Things and Their Environment

The interdependence of life - Humidity effects
The interdependence of life - Wind effects

By the end of the lesson, the learner should be able to:

- Define humidity
- Explain effects of humidity on organisms
- Demonstrate measurement of humidity

- Define wind and explain how it is measured
- Describe effects of wind on organisms
- Show interest in wind as an ecological factor

In groups, learners are guided to:
- Discuss meaning of humidity
- Measure humidity using cobalt chloride paper
- Analyze effects on plants and animals
- Discuss meaning of wind and wind parameters
- Explain effects of wind on plants and animals
- Construct simple wind measuring instruments

How does humidity affect organisms?
How does wind affect living organisms?

- Textbooks (KLB Integrated Science pg. 125)
- Cobalt(II) chloride paper
- Forceps
- Stopwatch
- Textbooks (KLB Integrated Science pg. 126)
- Digital resources
- Materials for windsock/wind vane

- Practical skills - Written assessment - Oral questions
- Practical skills - Written assessment - Group work

Living Things and Their Environment

The interdependence of life - pH and salinity
The interdependence of life - Energy flow

By the end of the lesson, the learner should be able to:

- Define pH and salinity
- Measure pH of soil and water samples
- Explain effects of pH and salinity on organisms

In groups, learners are guided to:
- Test pH of water samples
- Test pH of soil samples
- Discuss effects on organisms

How do pH and salinity affect living organisms?

- Textbooks (KLB Integrated Science pg. 127)
- Universal indicator paper
- Soil and water samples
- Test tubes
- Textbooks (KLB Integrated Science pg. 128)
- Digital resources
- Charts on energy flow

- Practical skills - Written assessment - Observation

Living Things and Their Environment

The interdependence of life - Food chains

By the end of the lesson, the learner should be able to:

- Define food chain
- Construct simple food chains
- Show interest in feeding relationships

In groups, learners are guided to:
- Observe feeding habits of organisms
- Record what each organism feeds on
- Construct food chains based on observations

What is a food chain?

- Textbooks (KLB Integrated Science pg. 129)
- Digital resources
- Charts on food chains

- Written assessment - Food chain construction - Observation

Living Things and Their Environment

The interdependence of life - Food webs
The interdependence of life - National Parks ecosystem

By the end of the lesson, the learner should be able to:

- Define food web
- Construct food webs from food chains
- Appreciate complexity of feeding relationships

In groups, learners are guided to:
- Observe feeding habits of organisms
- Construct multiple food chains
- Combine food chains into food webs

How do food chains interact to form food webs?

- Textbooks (KLB Integrated Science pg. 130)
- Digital resources
- Charts on food webs
- Textbooks (KLB Integrated Science pg. 131)
- Reference books on National Parks

- Food web construction - Written assessment - Group presentations

Living Things and Their Environment
Living Things and Their Environment
Force and Energy

The interdependence of life - Decomposers
The interdependence of life - Human activities
Curved mirrors - Types of curved mirrors

By the end of the lesson, the learner should be able to:

- Describe the role of decomposers in ecosystems
- Explain nutrient cycling
- Appreciate the importance of decomposers

- Describe effects of human activities on ecosystems
- Explain habitat change, conservation, and species introduction
- Show concern for environmental conservation

In groups, learners are guided to:
- Visit a compost site to observe decomposition
- Discuss the role of decomposers in nutrient cycling
- Analyze nitrogen, carbon and sulphur cycles
- Search for information on human impacts
- Discuss habitat change, poaching, and introduced species
- Analyze conservation methods

What role do decomposers play in an ecosystem?
How do human activities affect the environment?

- Textbooks (KLB Integrated Science pg. 132)
- Digital resources
- School compost site
- Hand lens
- Textbooks (KLB Integrated Science pg. 133)
- Digital resources
- Reference books
- KLB Integrated Science pg. 147
- Car driving mirrors
- Car headlight reflectors
- Laboratory curved mirrors
- Digital content on curved mirrors

- Written assessment - Practical skills - Group discussions
- Written assessment - Group presentations - Debates

Force and Energy

Curved mirrors - Types of curved mirrors

By the end of the lesson, the learner should be able to:

- Distinguish between concave and convex mirrors
- Compare parabolic reflectors with other curved mirrors
- Show interest in different types of reflectors

In groups, learners are guided to:
- Examine the curving of different mirrors
- Identify the reflecting surfaces of different mirrors
- Draw diagrams to illustrate different curved mirror surfaces

How do different curved mirrors differ in structure?

- KLB Integrated Science pg. 147
- Laboratory curved mirrors
- Digital resources
- Drawing materials

- Observation - Drawing assessment - Oral questions

Force and Energy

Curved mirrors - Images formed by concave and convex mirrors

By the end of the lesson, the learner should be able to:

- Define terms used in curved mirrors
- Identify parts of curved mirrors
- Show interest in terminology used in optics

In groups, learners are guided to:
- Study diagrams illustrating parts of curved mirrors
- Search the Internet and relevant print materials for meanings of optical terms
- Discuss terms used in curved mirrors

What are the key terms used in describing curved mirrors?

- KLB Integrated Science pg. 148
- Internet resources
- Digital devices
- Geometrical sets
- Curved mirrors

- Observation - Oral questions - Written assignments

Force and Energy

Curved mirrors - Images formed by concave and convex mirrors

By the end of the lesson, the learner should be able to:

- Describe the pole of a mirror
- Explain the center of curvature and radius of curvature
- Show interest in features of curved mirrors

In groups, learners are guided to:
- Locate the pole, center of curvature, and radius on diagrams
- Draw and label the parts of curved mirrors
- Discuss the significance of each feature

How do the parts of curved mirrors relate to image formation?

- KLB Integrated Science pg. 149
- Diagrams of curved mirrors
- Geometrical sets
- Drawing materials
- KLB Integrated Science pg. 150

- Observation - Drawing assessment - Oral questions

Force and Energy

Curved mirrors - Focal length
Curved mirrors - Position of image formed by concave mirrors
Curved mirrors - Position of image formed by convex mirrors

By the end of the lesson, the learner should be able to:

- Define focal length of curved mirrors
- Determine focal length experimentally
- Show interest in measuring optical parameters

- Locate images formed by concave mirrors experimentally
- Describe image characteristics for different object positions
- Show interest in image formation

In groups, learners are guided to:
- Define focal length
- Set up an experiment to determine focal length
- Measure and record focal length values
- Set up apparatus to locate images formed by concave mirrors
- Place objects at different positions relative to the mirror
- Record image characteristics for each position

How can we determine the focal length of a curved mirror?
How do image characteristics change with object position?

- KLB Integrated Science pg. 152
- Concave mirrors
- Meter rule
- White screen
- Mirror holder
- KLB Integrated Science pg. 153
- Concave mirrors
- Mirror holders
- Meter rules
- Screens
- Candles
- KLB Integrated Science pg. 154
- Convex mirrors
- Objects

- Observation - Practical skills assessment - Written reports

Force and Energy

Curved mirrors - Rays commonly used for ray diagram construction

By the end of the lesson, the learner should be able to:

- Identify rays used in ray diagram construction
- Explain how different rays are reflected
- Show interest in ray diagram construction

In groups, learners are guided to:
- Search the Internet for information on ray behavior
- Sketch ray diagrams showing reflection of different rays
- Discuss with peers and display sketches

Which rays are most useful for locating images in ray diagrams?

- KLB Integrated Science pg. 155
- Internet resources
- Digital devices
- Manila paper
- Drawing materials

- Observation - Drawing assessment - Oral questions

Force and Energy

Curved mirrors - Rays commonly used for ray diagram construction

By the end of the lesson, the learner should be able to:

- Explain how rays parallel to the principal axis are reflected
- Describe the reflection of rays passing through focal points
- Show interest in ray behavior

In groups, learners are guided to:
- Draw ray diagrams showing reflection patterns
- Discuss how different rays behave after reflection
- Create summary charts of ray behavior

How does understanding ray behavior help in locating images?

- KLB Integrated Science pg. 156
- Drawing materials
- Manila paper
- Ruler and protractor
- Reference materials

- Observation - Drawing assessment - Oral questions

Force and Energy

Curved mirrors - Rays commonly used for ray diagram construction

By the end of the lesson, the learner should be able to:

- Construct ray diagrams for concave mirrors
- Locate images using ray diagrams
- Show interest in graphical representation

In groups, learners are guided to:
- Draw ray diagrams for different object positions
- Use ray diagrams to locate images
- Determine image characteristics from ray diagrams

How can ray diagrams be used to predict image characteristics?

- KLB Integrated Science pg. 157
- Manila paper
- Drawing materials
- Ruler and protractor
- Reference materials
- KLB Integrated Science pg. 159

- Observation - Drawing assessment - Written assignments

Force and Energy

Curved mirrors - Uses of concave mirrors

By the end of the lesson, the learner should be able to:

- Explain applications of concave mirrors
- Relate object positions to specific applications
- Show interest in practical applications

- Describe the use of concave mirrors in reflectors
- Explain the principle behind solar heating
- Show interest in energy applications

In groups, learners are guided to:
- Search for information on applications of concave mirrors
- Relate applications to image characteristics
- Present findings to class
- Discuss the use of concave mirrors in headlights and torches
- Explain how concave mirrors concentrate solar energy
- Research applications in solar cooking and heating

What makes concave mirrors suitable for specific applications?
How are concave mirrors used in energy applications?

- KLB Integrated Science pg. 161
- Digital devices
- Internet connectivity
- Charts of ray diagrams
- KLB Integrated Science pg. 161
- Digital resources
- Internet connectivity
- Torch with reflector
- KLB Integrated Science pg. 162
- Reference materials

- Observation - Oral presentations - Written assignments
- Observation - Oral questions - Written assignments

Force and Energy

Curved mirrors - Uses of convex mirrors

By the end of the lesson, the learner should be able to:

- Explain applications of convex mirrors
- Describe security and safety uses
- Show interest in practical applications

In groups, learners are guided to:
- Discuss the use of convex mirrors for surveillance
- Explain their applications in security systems
- Research use at road junctions and corners

How do convex mirrors enhance security and safety?

- KLB Integrated Science pg. 163
- Digital resources
- Internet connectivity
- Reference materials

- Observation - Oral questions - Written assignments

Force and Energy

Curved mirrors - Uses of convex mirrors

By the end of the lesson, the learner should be able to:

- Explain the use of convex mirrors as driving mirrors
- Describe applications of parabolic reflectors
- Show interest in real-world applications

In groups, learners are guided to:
- Discuss why convex mirrors are used as side mirrors
- Explain advantages of wider field of view
- Research applications of parabolic reflectors

How do curved mirrors enhance transportation safety?

- KLB Integrated Science pg. 164
- Digital resources
- Internet connectivity
- Reference materials

- Observation - Oral questions - Written assignments

Force and Energy

Curved mirrors - Review and assessment
Waves - Generation of waves

By the end of the lesson, the learner should be able to:

- Summarize key concepts about curved mirrors
- Apply knowledge to solve problems
- Show confidence in understanding curved mirrors

In groups, learners are guided to:
- Review main concepts in curved mirrors
- Answer revision questions
- Discuss solutions to problems

How does understanding curved mirrors help us in daily life?

- KLB Integrated Science pg. 166
- Previous notes
- Assessment questions
- Reference materials
- KLB Integrated Science pg. 170
- Water in a basin
- Drum
- Speaker connected to radio
- Small stones

- Written test - Observation - Oral questions

Force and Energy

Waves - Classification of waves
Waves - Classification of waves
Waves - Characteristics of waves

By the end of the lesson, the learner should be able to:

- Generate longitudinal waves
- Describe characteristics of longitudinal waves
- Show interest in wave classification

- Generate transverse waves
- Describe characteristics of transverse waves
- Compare longitudinal and transverse waves

In groups, learners are guided to:
- Use a slinky spring to generate longitudinal waves
- Observe particle displacement direction
- Compare with wave travel direction
- Use a slinky spring to generate transverse waves
- Observe particle displacement direction
- Create comparison charts

What distinguishes longitudinal waves from other wave types?
How do transverse waves differ from longitudinal waves?

- KLB Integrated Science pg. 172
- Slinky spring
- Rope
- Smooth surface
- Rigid support
- KLB Integrated Science pg. 173
- Slinky spring
- Rope
- Smooth surface
- Rigid support
- KLB Integrated Science pg. 175
- Meter rule
- Chalk
- Drawing materials

- Observation - Practical skills assessment - Written assignments

Force and Energy

Waves - Characteristics of waves

By the end of the lesson, the learner should be able to:

- Define wavelength
- Identify crests and troughs
- Explain wave phase

In groups, learners are guided to:
- Generate waves and identify crests and troughs
- Measure wavelength
- Identify points in phase

How is wavelength measured and what is its significance?

- KLB Integrated Science pg. 177
- Slinky spring
- Meter rule
- Chalk
- Drawing materials

- Observation - Measurement skills assessment - Written assignments

Force and Energy

Waves - Frequency and periodic time

By the end of the lesson, the learner should be able to:

- Define frequency and periodic time
- Measure periodic time
- Calculate frequency from periodic time

In groups, learners are guided to:
- Demonstrate frequency and periodic time
- Measure time for complete oscillations
- Calculate frequency from measurements

What is the relationship between frequency and periodic time?

- KLB Integrated Science pg. 180
- Slinky spring
- Meter rule
- Stopwatch
- Chalk
- KLB Integrated Science pg. 181
- Calculators
- Graph paper
- Reference materials
- Problem sets

- Observation - Calculation skills assessment - Written assignments

Force and Energy

Waves - Speed of a wave

By the end of the lesson, the learner should be able to:

- Define wave speed
- Derive the wave equation
- Apply the wave equation to solve problems

In groups, learners are guided to:
- Derive the relationship between wavelength, frequency and wave speed
- Practice using the wave equation
- Solve sample problems

How are wavelength, frequency, and wave speed related?

- KLB Integrated Science pg. 183
- Calculators
- Reference materials
- Problem sets

- Observation - Problem-solving assessment - Written assignments

Force and Energy

Waves - Speed of a wave
Waves - Properties of waves

By the end of the lesson, the learner should be able to:

- Solve complex problems using wave equation
- Explain the relationship between wavelength and frequency
- Apply wave concepts to real situations

- Demonstrate reflection of waves
- Explain how waves are reflected
- Show interest in wave properties

In groups, learners are guided to:
- Work through more complex wave problems
- Discuss how the wave equation applies in real scenarios
- Create a concept map of wave relationships
- Set up a ripple tank to demonstrate wave reflection
- Observe reflection patterns from different surfaces
- Compare with reflection of light

How does changing one wave parameter affect others?
How do waves behave when they encounter boundaries?

- KLB Integrated Science pg. 184
- Calculators
- Reference materials
- Problem sets
- Chart paper
- KLB Integrated Science pg. 186
- Ripple tank
- Straight edge
- Metal reflectors
- Water
- KLB Integrated Science pg. 187
- Glass block
- Wave generator

- Observation - Problem-solving assessment - Concept map evaluation
- Observation - Practical skills assessment - Written reports

Force and Energy

Waves - Properties of waves

By the end of the lesson, the learner should be able to:

- Demonstrate diffraction of waves
- Explain the factors affecting diffraction
- Show interest in wave behavior

In groups, learners are guided to:
- Set up a ripple tank with barriers having gaps
- Observe spreading of waves through gaps
- Investigate the effect of gap size

How do waves spread around obstacles or through openings?

- KLB Integrated Science pg. 188
- Ripple tank
- Metal barriers
- Water
- Wave generator

- Observation - Practical skills assessment - Written reports

Force and Energy

Waves - Remote sensing

By the end of the lesson, the learner should be able to:

- Define remote sensing
- Explain the principles of remote sensing
- Show interest in remote sensing applications

In groups, learners are guided to:
- Study photographs of environments
- Discuss the source of energy in photography
- Research remote sensing processes

What is remote sensing and how does it work?

- KLB Integrated Science pg. 189
- Digital resources
- Photographs
- Internet connectivity
- KLB Integrated Science pg. 190
- Drawing materials

- Observation - Oral questions - Written assignments

Force and Energy

Waves - Applications of waves

By the end of the lesson, the learner should be able to:

- Identify applications of waves in medicine
- Explain how waves are used in medical imaging
- Show interest in medical applications

In groups, learners are guided to:
- Research applications of waves in medicine
- Discuss ultrasound, X-rays, and MRI scans
- Create presentations on medical applications

How are waves applied in medical imaging?

- KLB Integrated Science pg. 191
- Digital resources
- Internet connectivity
- Presentation materials

- Observation - Presentations - Written assignments

Force and Energy

Waves - Applications of waves

By the end of the lesson, the learner should be able to:

- Explain the use of waves in surgery
- Describe applications in cancer therapy
- Show interest in medical treatments

- Describe communication applications of waves
- Explain principles of wireless communication
- Show interest in telecommunications

In groups, learners are guided to:
- Research laser surgery applications
- Discuss radiation therapy for cancer
- Create information posters
- Research applications in radio, television, and mobile phones
- Discuss radar and satellite communications
- Create charts showing different communication systems

How have waves revolutionized medical treatments?
How have waves transformed communication systems?

- KLB Integrated Science pg. 192
- Digital resources
- Internet connectivity
- Poster materials
- KLB Integrated Science pg. 193
- Digital resources
- Internet connectivity
- Chart materials
- KLB Integrated Science pg. 194
- Table templates

- Observation - Poster assessment - Written assignments
- Observation - Chart assessment - Written assignments

Force and Energy

Waves - Review and assessment

By the end of the lesson, the learner should be able to:

- Summarize key concepts about waves
- Apply knowledge to solve wave problems
- Show confidence in understanding waves

In groups, learners are guided to:
- Review main wave concepts
- Answer revision questions
- Discuss solutions to problems

How does understanding waves help us explain natural phenomena?

- KLB Integrated Science pg. 195
- Previous notes
- Assessment questions
- Reference materials

- Written test - Observation - Oral questions