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Subject: General Science
Semester: 1
Period: 2
Week: 8
School Name:
Teacher’s Name:
Subject: General Science
Grade Level: Grade 3
Date: Week 8
Lesson Duration: 45 minutes
Week & Period: Week 8, Period 2
Topic: Earth’s Motion
Sub-topic: Rotation and Revolution
Learning Objectives
By the end of the lesson, students should be able to:
relate Earth’s movement to day, night, and seasons.
illustrate the Earth’s rotation and revolution with a model.
Previous Knowledge
Students already know:
The Earth moves and the Sun appears to rise in the east and set in the west.
Instructional Materials
Globe, flashlight, chart of day/night cycle, images showing seasons, worksheets.
Lesson Development – ABC Model
A – Anticipation (Warm-up / Starter)
Time: 5–10 minutes
Ask learners why it is daytime in some countries while nighttime in others. Use a globe and flashlight to demonstrate light and shadow.
B – Building Knowledge (Main Lesson Body)
Time: 25–30 minutes
Learners’ Activities (Expanded):
- Learners rotate a globe slowly to observe how different parts of the Earth experience day and night, discussing which parts are in sunlight and which are in darkness.
- Students simulate the Earth’s revolution around the Sun using a lamp as the Sun and a globe as Earth, walking around the lamp to observe how seasons change in different parts of the world.
- Learners label diagrams of the Earth’s rotation (axis) and revolution (orbit around the Sun), identifying terms such as day, night, summer, winter, spring, and autumn.
- Optional activity: students create a simple 3D model using a small ball and stick to represent Earth’s axis and motion around a larger object representing the Sun.
Assessment Checks (Expanded):
- Ask learners to explain why day and night occur, emphasizing the Earth’s rotation on its axis.
- Ask learners to describe how seasons change in different parts of the world, noting the tilt of the Earth’s axis during revolution.
- Observe accuracy during model demonstrations: check if learners rotate the globe correctly and simulate the Earth’s orbit in the right direction.
- Pose reflective questions:
- “If the Earth didn’t rotate, what would happen?”
- “Why is it summer in one country but winter in another at the same time?”
Notes (Expanded & Detailed):
- The Earth rotates on its axis once every 24 hours, causing day and night: the side facing the Sun experiences day, while the opposite side experiences night.
- The Earth revolves around the Sun once every year (365 days), causing the seasons: spring, summer, autumn, and winter.
- The tilt of the Earth’s axis (23.5°) during revolution explains why different parts of the world experience different seasons at the same time.
- Simple models like a globe, lamp, or balls can help learners visualize rotation and revolution.
- Encourage learners to observe day and night patterns in their locality and notice seasonal changes like temperature, rainfall, or daylight hours.
- Emphasize that rotation affects time of day, while revolution affects climate and seasons, helping learners connect classroom learning to real life.
C – Consolidation (Conclusion & Assessment)
Time: 5–10 minutes
Summary:
Review the concepts of rotation and revolution. Reinforce their effects on day, night, and seasons.
Evaluation Method (Expanded)
Exit slip/quiz: Draw and label a diagram showing day and night, and indicate the Earth’s rotation and revolution.
Teacher will collect slips and provide oral feedback.
Assignment (Expanded)
Observe sunrise and sunset times for one week and relate changes to Earth’s motion.
Follow-up Activity
Create a mini-model showing day/night and seasons using a globe and flashlight.
Differentiation / Inclusive Strategies
Provide pre-labeled diagrams for learners who struggle with drawing. Pair learners for hands-on model activities. Offer guidance for learners with physical or visual difficulties.
Teacher’s Reflection (After Class)
What worked well? ___________________________________________
What needs improvement? ____________________________________
Students’ engagement level: ☑ High ☑ Medium ☑ Low