Motions of the earth presentation (1)
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Transcript of Motions of the earth presentation (1)
The Motions of the Earth
Lesson Plan: Grade 6
Subject: Social Studies (Class VI)Topic: The Motions of the EarthSubtopics: Rotation, Revolution and SolsticeDuration: 6 periods
Prepared by:Ms Mallika Budhiraja
(D.A.V Public School, Reserve Bank Enclave)
Learning ObjectivesStudent will know the terms rotation,
revolution, axis, Earth, Moon, and Sun. Student will be able to explain that Earth
tilts on its axis. Students will be able to explain that due
to rotation and the tilt of the Earth we have different seasons.
Students will be able to explain that the Earth revolves around the Sun.
Students will be able to identify the different seasons.
Objectives To enable the students to internalize
and remember rotation and revolution of the Earth around the sunTo enable the students define and
describe rotationTo enable the students define and
describe revolution To empower the students to reason
why the sun is in different places in the sky at different times of day
Content FlowCheck for previous knowledg
e
Introduce rotation
Role play rotation
using globe
Video on Rotation
Introduce revolution
using poster
Recap information
learnt using
worksheet
Introduce solstice
and equinox
using chart
Reinforce concept using
labeling activity
Puzzle as home task
Materials used
PPT Globe Textbook
Board Documentary Diagrams
Teaching MethodologyIntroduction through questioning:The students will be asked questions based on their previous knowledge about the earth spinning on its imaginary axis from west to east. It completes one rotation in 24 hours. Terms like rotation, revolution and orbit will be explained. This knowledge will then be connected to the formation of day and night and seasons. This concept will be further connected to leap year, solstice and equinox.
Methodology contd…Rotation:- Rotation will be explained using a globe.The concept of rotation will be explained. The earth faces the sun while rotating from west to east. Each part of the earth facing the Sun is illuminated by sunlight turn by turn. Therefore day and night will be explained. The concept of Dawn and Dusk will be explained with the help of the globe and the electric lamp.The video to teach and support this topic is www.youtube.com/watch?v=kXnBVUoF4DY (Right Click to Open Hyperlink)Follow up: Students will be asked to draw a diagram showing the day and night due to rotation
Methodology contd…Revolution:- The students will be told that the earth completes one revolution around the sun in an elliptical orbit in one year. To be specific, the earth completes one revolution in 365 days and about 6 hours but we consider 365 days for convenience . The extra 6 hours are added up for four years hence making it a leap year with an extra day. The concept of leap year and connection between revolution and seasons will be further explained.
Follow Up: Recap of the topics taught uptil now will be done using a worksheet (attached on the next page)
Worksheet
Methodology contd…Positions Of The Earth On Particular DatesThe positions of the earth on particular dates will be explained . These positions causes seasons will also be mentioned.Position on 21 June: The northern hemisphere is inclined towards the sun and the southern hemisphere is away from the sun. The arctic circle faces the sun 24 hours. The northern hemisphere has :summer solstice and the southern hemisphere has winter solstice.Position on 23 September: The sun shines vertically over the equator therefore days and nights are equal in both the hemispheres.
Methodology contd…Position on 22 December: The southern hemisphere is inclined towards the sun and the northern hemisphere is away from the sun. Southern hemisphere has summer solstice and the northern hemisphere has winter solsticePosition on 21 March: The sun is vertical over the equator again, the duration of the day and nights is equal in both the hemisphere again. But it is spring in the northern hemisphere and autumn in the southern hemisphere .Therefore vernal and autumnal equinoxes respectively
Follow up for Solstice
Follow up for Seasons
Home Task
Tools and AidsDocumentary on motions of earth
Power point presentation on rotation and revolution
Poster
Chart on seasons
Roleplay
Documentary on Day and Night
www.youtube.com/watch?v=kXnBVUoF4DY
Formation of Day and Night - YouTube [360p].mp4
(Right click to open hyperlink)
The presentation would entail the following:
Recap about imaginary axisExplaining the terms: Rotation, Revolution and Orbit
Phenomenon of day and night
Model explaining day and nightRevolution of the earth and concept of leap yearEquinox and solstice
PowerPoint Presentation
Poster
Chart on Seasons of the Earth
Role Play by Students
Activity (Rotation): Explain to the students that to do this experiment you
will need to bring the Sun into the classroom. Ask if they think that is a good idea.
Discuss what you could use instead (i.e. torch or lamp). The torch/lamp represents the Sun, but tell children that you also need the Earth. Introduce the Globe.
Mark P on the globe to represent a place. Switch on the lamp and observe the lit half and dark half of the globe
Next you introduce a place on the opposite side of the globe.
Rotate the globe and discuss whether it is day or night on the marked points of the globe
Vocabulary
Axis Solstice Dawn Dusk Elliptic
al
ValuesWhat would happen if the earth stops moving?
What would happen if there were no sesons?
Suggest measures to save the earth
Asse
ssm
ent
Tech
niqu
esInterdisciplinar
y ActivitiesAssessment
Rubrics
Assignments
Interdisciplinary ActivitiesEnglish
• Make a colourful catchy slogan on ”Earths Rotation”
Maths• Using a
geometrical instrument show that the earths axis makes• 66.5
degree with its orbital plane
• 23.5 degree from its vertical line
Science• Make a
poster on “Save the Earth”
Social Studies
• Make a diagram representing Rotation and Revolution of the Earth
Assessment Rubrics
English• Language
(2)• Presentat
ion (2)• Creativity
(2)
Maths• Accurac
y of content (2)
• Neatness of Diagram (2)
Science• Clarity
(2)• Presentat
ion (5)• Creativity
(2)• Concept
(2)
Social Studies • Neatnes
s (2)• Accurac
y (2)• Shading
(2)
Assignments
Slow learner
• MCQ’s (2)• Tabular Chart (2)• Labeling Diagram (Solstice) (5)
General
• MCQ’s (2)• Fill in the blanks (2)• Questions and Answers (5)• Labeling Diagram (Rotation and Revolution)
(5)
High Achievers
• Crossword (10)• Labeling Diagram (Seasons) (5)• Questions and Answers (5)
Assignment for Slow Learners
Multiple Choice Questions
Some examples are:1.The Duration of day and night is equal in both hemispheres on ?a. 21st March b. 21 st Junec. 23rd September d. 22nd December
2.The time of sunrise is called __________________a. Morning b. Noonc. Dawn d. Dusk
3. A line that joins the north and south pole about which the earth rotates is calleda. Orbit b. Rotationc. Axis d. Revolution
4. A leap year has ___________ days in a year?a. 356 b. 366c. 364 d. 365
Tabular Chart
Follow up for Solstice
Questions and Answers
1. On what does the Earth rotate on?
2. What causes seasons?3. Explain the term Rotation and
Revolution. 4. How much time does the
earth take to complete one revolution?
Assignment for General Learners
Multiple Choice QuestionsSome examples are:
1.The Duration of day and night is equal in both hemispheres on ?a. 21st March b. 21 st Junec. 23rd September d. 22nd December
2.The time of sunrise is called __________________a. Morning b. Noonc. Dawn d. Dusk
3. A line that joins the north and south pole about which the earth rotates is calleda. Orbit b. Rotationc. Axis d. Revolution
4. A leap year has ___________ days in a year?a. 356 b. 366c. 364 d. 365
Label the diagram
Fill in the blanks
Questions and Answers
1. What is a leap Year?2. Is Rotation and Revolution
similar? Differentiate between the two.
3. Define the term Equinox. Explain two types of equinox.
4. How much time does the earth take to complete one rotation?
Assignment for High Achievers
Crossword Puzzle
Follow up for Seasons
Questions and Answers
1. Explain the Rotation of the Earth?
2. How are Rotation and Revolution different?
3. Explain the concept of leap year.
4. How does the position of the Earth cause Equinox and Solstice?
Follow up/ Remedial Strategy
On the basis of students performance, assignments and class performance of Formation Assessments, the teacher will enlist the following:-
The Conceptual Errors:- Difference between Rotation, Revolution and Different positions of Sun
The Assignment based Errors:- Labeling the Diagram