The Earth's Movements

Grade 10 · Geography

Semester 1 | Period 1 | Week 5

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Subject: Geography

Semester: 1

Period: 1

Week: 5

School Name: ___________________________
Teacher’s Name: _________________________
Subject: Geography
Grade Level: Grade 10
Date: ____________
Week & Period: Week 5, Period 1
Lesson Duration: 45 minutes

Topic: The Earth’s Movements

Sub-Topics:

  1. Rotation of the Earth
  2. Effects of Rotation
  3. Revolution of the Earth
  4. Effects of Revolution
  5. Solar and Lunar Eclipses

 

Learning Objectives

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

  1. Define rotation and revolution of the Earth.
  2. State the duration of rotation and revolution.
  3. Explain the effects of Earth’s rotation (day & night, time zones, etc.).
  4. Describe the effects of Earth’s revolution (seasons, leap year, varying length of day & night).
  5. Differentiate between solar eclipse and lunar eclipse.
  6. Illustrate solar and lunar eclipses with diagrams.

 

Previous Knowledge

Students already know from Week 4:

  • The Earth is spherical in shape.
  • The Earth is divided into hemispheres with longitude and latitude.

 

Instructional Materials

  • Globe
  • Torchlight (flashlight)
  • White ball or orange (as Earth)
  • Chart showing rotation, revolution, solar & lunar eclipses
  • Multimedia/animation (if available)

 

Lesson Development – ABC Model

A – Anticipation (Warm-up / Starter)

Time: 5–10 minutes

Teacher’s Activity:

  • Darken the classroom briefly and shine a torchlight on a ball.
  • Ask students: “Why is one side bright while the other is dark?”
  • Follow-up: “What makes day and night on Earth?”

Learners’ Activity:

  • Observe demonstration.
  • Give ideas about day and night.

 

B – Building Knowledge (Main Lesson Body)

Time: 25–30 minutes

Teacher’s Role (Explanation & Notes):

  1. Rotation of the Earth
  • Definition: The spinning of Earth on its axis.
  • Duration: 24 hours (23 hrs, 56 mins).
  • Direction: West → East.

Effects of Rotation:

  • Day and night.
  • Time differences across longitudes.
  • Apparent rising and setting of the sun.
  • Deflection of winds & ocean currents (Coriolis effect).

 

  1. Revolution of the Earth
  • Definition: Movement of the Earth around the Sun.
  • Path: Elliptical orbit.
  • Duration: 365¼ days (1 year).

Effects of Revolution:

  • Change of seasons (spring, summer, autumn, winter).
  • Leap year (extra day in February every 4 years).
  • Varying length of day and night.
  • Differences in temperature in hemispheres.

 

  1. Eclipses

Solar Eclipse

  • When the Moon comes between the Earth and the Sun.
  • The Moon’s shadow falls on Earth, blocking sunlight.
  • Types: Total, Partial, Annular.

Lunar Eclipse

  • When the Earth comes between the Sun and the Moon.
  • The Earth’s shadow falls on the Moon, making it dark.
  • Occurs only on a full moon day.

 

Learners’ Role (Activities):

  • Use globe + torch to demonstrate rotation and revolution.
  • Identify seasons on a diagram of Earth’s revolution.
  • Sketch solar and lunar eclipses in their notes.
  • Answer practice questions on effects of Earth’s movements.

 

Assessment (Formative during class):

  1. How long does the Earth take to rotate once?
  2. What are two effects of Earth’s revolution?
  3. Differentiate between solar eclipse and lunar eclipse.

 

C – Consolidation (Conclusion & Evaluation)

Time: 5–10 minutes

Summary (Teacher):

  • Rotation → 24 hrs → causes day & night, time zones.
  • Revolution → 365¼ days → causes seasons, leap year, varying day length.
  • Eclipses → Solar (Moon blocks Sun), Lunar (Earth blocks Sun’s rays on Moon).

Evaluation (Oral/Short Answer):

  1. State the difference between Earth’s rotation and revolution.
  2. Mention three effects of Earth’s rotation.
  3. Explain what causes leap year.
  4. Draw a simple diagram to show a lunar eclipse.

 

Assignment:

  1. With the aid of a diagram, explain how Earth’s revolution causes seasons.
  2. Differentiate between solar eclipse and lunar eclipse (with sketches).
  3. If the Earth did not rotate, what would happen to life on Earth?

 

Differentiation / Inclusive Strategies

  • Struggling Learners: Use repeated demonstrations with torch + ball.
  • Advanced Learners: Research annular eclipses and next predicted eclipse in Africa.
  • Students with Disabilities: Use tactile models (balls with raised markings) to demonstrate rotation and revolution.

 

Teacher’s Reflection (After Class)

  • Students’ engagement: □ High □ Medium □ Low
  • Most challenging concept: _______________________
  • What needs reinforcement: _______________________