Light Energy

Grade 5 · General Science

Semester 1 | Period 2 | Week 10

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Subject: General Science

Semester: 1

Period: 2

Week: 10


School Name:
Teacher’s Name:
Subject: General science
Grade Level: Grade 5
Date: Week 10
Lesson Duration: 45 minutes
Week & Period: Week 10, Period 2
Topic: Light Energy
Sub-topic: Light and its Sources

Learning Objectives
By the end of the lesson, students should be able to:
Identify sources of light and describe its characteristics

Previous Knowledge
Students already know energy exists in many forms, including light

Instructional Materials
Flashlights, mirrors, prisms, bulbs, charts, worksheets

Lesson Development – ABC Model
A – Anticipation (Warm-up / Starter)
Time: 5–10 minutes
Teacher asks: “Where do we get light from, and how do we use it in our daily life?”

B – Building Knowledge (Main Lesson Body)
Time: 25–30 minutes
Learners’ Activities (Expanded):

  • Learners identify natural light sources such as the Sun and stars and artificial sources like bulbs, torches, and LEDs.
  • Learners perform simple demonstrations to explore light properties:
    • Reflection: using mirrors to reflect light onto surfaces
    • Refraction: placing a pencil in a glass of water and observing bending
    • Transparency: classifying objects as transparent, translucent, or opaque
    • Brightness: observing light intensity from different sources
  • Learners work in small groups to classify classroom objects based on light properties.
  • Learners discuss everyday examples of light usage: sunlight for warmth, bulbs for illumination, torches for night visibility.

Assessment Checks:

  • Teacher asks: “Name one natural and one artificial light source.”
  • Teacher asks learners to describe what happens when light reflects off a mirror.
  • Teacher observes learners’ participation in experiments and their ability to classify objects by light properties.

Notes (Expanded & Detailed):

  • Light Energy: Form of energy that makes objects visible
  • Sources of Light:
    • Natural: Sun, stars, fire
    • Artificial: Electric bulbs, torches, LEDs
  • Properties of Light:
    • Reflection: Light bounces off surfaces
    • Refraction: Light bends when passing through different mediums
    • Transparency: Ability of light to pass through objects (transparent, translucent, opaque)
    • Brightness: Amount of light produced by a source
  • Applications: Lighting rooms, signaling, seeing objects, guiding vehicles

Practical Activities:

  1. Shine a torch on a mirror to demonstrate reflection and direct it onto a wall.
  2. Place a pencil in a glass of water to observe bending (refraction).
  3. Sort classroom objects into transparent, translucent, and opaque groups.
  4. Measure brightness by observing distance effect on visibility from a light source.

Assignment/Homework:

  1. Draw a table with natural and artificial light sources and describe one use for each.
  2. Find three objects at home and classify them as transparent, translucent, or opaque.
  3. Write a short paragraph explaining why sunlight is important for life on Earth.

C – Consolidation (Conclusion & Assessment)
Time: 5–10 minutes
Summary: Recap sources of light and its characteristics

Evaluation Method (Expanded)
Exit slip/quiz: Learners identify two light sources and one property of light
Teacher will collect slips and provide oral feedback

Assignment (Expanded)
Draw a diagram showing reflection or refraction of light at home or school

Follow-up Activity
Group discussion on uses of natural and artificial light

Differentiation / Inclusive Strategies
Experiments for kinesthetic learners, diagrams for visual learners, peer discussion for verbal learners

Teacher’s Reflection (After Class)
What worked well? ___________________________________________
What needs improvement? ____________________________________
Students’ engagement level: ☑ High ☑ Medium ☑ Low