Lesson Plan - Light

Class 6 - Physics Lesson Plan

Chapter 5: Light

Topic:

Understanding Light and Its Properties

Subtopics:

  • Rectilinear Propagation of Light
  • Applications of Rectilinear Propagation of Light
  • Pinhole Camera
  • Shadows

Learning Objectives:

  • Understand that light travels in a straight line (rectilinear propagation).
  • Identify real-world applications of rectilinear propagation.
  • Explain the working principle of a pinhole camera.
  • Describe the formation of shadows and factors affecting their size and shape.

Procedure:

  • Introduce the concept of light and its straight-line motion.
  • Demonstrate rectilinear propagation using a torch and cardboards with holes.
  • Discuss real-life applications (e.g., shadows, eclipses, periscopes).
  • Explain the pinhole camera and its function with a simple demonstration.
  • Show how shadows are formed and discuss their properties.

Activities:

  • Experiment: Demonstrating rectilinear propagation using a laser/torch and obstacles.
  • DIY Pinhole Camera: Students make and test a simple pinhole camera.
  • Shadow Experiment: Observing how shadow size changes with light source distance.
  • Discussion: Applications of shadows in daily life (sundials, eclipses, etc.).

Skills/Values:

  • Observation and experimentation skills.
  • Analytical thinking and problem-solving.
  • Application of scientific concepts in real life.

Assessment:

  • Class participation in discussions and experiments.
  • Short quiz on rectilinear propagation, shadows, and pinhole cameras.
  • Group presentation on real-world applications of light.
  • Homework: Identify and explain shadows observed at different times of the day.