Difference between revisions of "TNSB - 8 - Science :: Light and Sound"

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(→‎Lesson Plan)
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=Lesson Plan=
 
=Lesson Plan=
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[Contributor - Preethi Saravanakumar]
 
  
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'''Objective:''' To educate the children about light and sound, effects of reflection, noise pollution
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[Contributor - Gayathri Arun Kumar]
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'''Subtopics to be covered:'''
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# Reflection of Light
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# Laws of Reflection- Regular and Irregular Reflections
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# Multiple reflection (Multiple Images, Mirror Periscope, Refraction,  Every day effects of Refraction)
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# Total Internal Reflection (Necessary conditions for total internal reflection)
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# Human Eye
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# Sound (Different sources of sounds around us)
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# Noise (Noise pollution, Harmful effects of noise pollution, Steps to control noise pollution )
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'''Learning Outcome:'''
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Dear Volunteer,
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# Students  understand the properties of Light and Sound, Laws of Reflection, Ways to reduce Noise pollution.
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=Textbook=
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Please find below the detailed lesson plan and PPT for this chapter in the language mentioned against the respective link. While the lesson plan will give an overall flow of the lesson, the PPT will include lesson flow as well as the presentations for the class.
  
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[Contributor - Kripa S]
 
  
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'''https://drive.google.com/open?id=1yKbcWz59dEtfvAp1S67kM8w6llRkp59e''' (Lesson Plan - English)
  
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http://www.textbooksonline.tn.nic.in/Books/Std08/Std08-III-MSSS-TM-3.pdf#page=14 (Tamil Medium)
 
  
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http://www.textbooksonline.tn.nic.in/Books/Std08/Std08-III-MSSS-EM-3.pdf#page=14 (English Medium)
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'''https://drive.google.com/open?id=1RDZ5bAOpHVW-g8IjXvXCo0TlVwyXYkrW''' (PPT - Tamil)
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You may use the content as it is or download and modify them to suit the students requirements.
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If you feel any major modifications or additions are carried out by you in the form of adding any new activity, presentations, videos etc. we request you to send the modified version to submitcontent@evidyloka.org for enabling upload the modified version.
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 +
 
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The worksheets of the lesson can be accessed from the worksheet tab.
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Kindly rate the lesson plan and share your suggestions and comments on the lesson plan in the comments box below. Your valuble suggestions and comments will help us to improve the content.
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=Textbook=
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[Contributor - Rini Jose]
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https://drive.google.com/open?id=1ahpMT8iEmrWH-zAGyAZLPNgZztRcm1rG (English)
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https://drive.google.com/open?id=1_ODuZOYkGio7fka7vAXQ-OOUPQL_vEmp (Tamil)
  
  
 
=Videos=
 
=Videos=
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[Contributor - Gayathri Arun Kumar]
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Lesson Plan version 1.1 videos
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https://www.youtube.com/watch?v=dwxaq4c9K6k  (Reflection of light)
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https://www.youtube.com/watch?v=s8ur3rbYfx8 (laws of reflection)
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https://www.youtube.com/watch?v=ETF2-Zz3J18 (reflection of light - activitiy).
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https://www.youtube.com/watch?v=a1kFMSpvesU (regular , irregular reflection)
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https://www.youtube.com/watch?v=rHtootmmIg8 (Multiple reflection , multiple images)
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https://www.youtube.com/watch?v=jQDRNb-E-cY (Refraction)
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https://www.youtube.com/watch?v=phncGyF1Mog (Everyday effects of refraction)
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https://www.youtube.com/watch?v=T-iy29oEmSI (Total internal reflection)
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https://www.youtube.com/watch?v=eDIma_Ai1Rc (Human eye and its parts)
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https://www.youtube.com/watch?v=nbwPPcwknPU (Human eye and its parts)
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https://www.youtube.com/watch?v=ggPOhxtWKVw (How sound is produced by humans)
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https://www.youtube.com/watch?v=T8lKKlnnC6M (How we hear sound)
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https://www.youtube.com/watch?v=C6ZQUmBg1eU (How we hear)
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https://www.youtube.com/watch?v=p3Oy4lodZU4 (How we hear)
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https://www.youtube.com/watch?v=lGYUVEj05yU
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https://www.youtube.com/watch?v=CY04lXo9brE
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https://www.youtube.com/watch?v=2rl007awPC8 (noise pollution)
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https://www.youtube.com/watch?v=smLUnse4gWs (Fiber optics)
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=Images=
 
=Images=
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https://www.youtube.com/watch?v=ZNmjBOVIAME (talk from a distance)
 
https://www.youtube.com/watch?v=ZNmjBOVIAME (talk from a distance)
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[Contributor - Gayathri Arun Kumar]
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Lesson Plan version 1.1 activities
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1. Materials-Drawing sheet, a protractor, a plane mirror, torch light.
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Procedure-I arrange the drawing sheet, protractor and a plane mirror as shown in the diagram. Using the protractor I draw a normal at a point. Then I draw the number of lines at different angles. From the torch light, I make a ray of light to pass along a line and draw the path of the reflected ray. I measure the angle of reflection. I repeat the experiment for different angles of incidence and I measure the corresponding angle of reflection and tabulate the measures.
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2. Materials: wood, window panes, table tops, polished granite surfaces, paper. Procedure: Let us look ourselves through the surface of all these objects.
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3. Materials-plane mirrors, a candle.
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Procedure: I keep a burning candle before a plane mirror. I hold another plane mirror at an angle to the first mirror. Then I count the number of images formed. I do the same by keeping the mirrors at different angles and I count the number of images formed.
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4. Materials: Two rubber strips of the same length and width. Procedure: I take two rubber strips of the same length and width. I put them one above the other. I hold them at both ends and stretch them tight. I blow air through the split between them.
  
  
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https://drive.google.com/open?id=1Q0tIEEP1P3tpxCkJDnCy-jsoE9io8oXW
 
https://drive.google.com/open?id=1Q0tIEEP1P3tpxCkJDnCy-jsoE9io8oXW
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[Contributor - Gayathri Arun Kumar]
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Lesson Plan version 1.1 PPT
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https://drive.google.com/open?id=1RDZ5bAOpHVW-g8IjXvXCo0TlVwyXYkrW (PPT - Tamil)
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=Transliteration=
 
=Transliteration=
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https://drive.google.com/open?id=1giRgHgxuCiqh_bsjiEUQaCw8eA_WL1Xb
 
https://drive.google.com/open?id=1giRgHgxuCiqh_bsjiEUQaCw8eA_WL1Xb
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[Contributor - Ankita Srivastava]
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https://drive.google.com/open?id=1PvsCBXc9TvKpHig9A2YNToY1GayXiAS3 (Worksheet 1- English)
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https://drive.google.com/open?id=1IF3d3wwRmOuI2r7JR2Bcv5GdbGtHu5N9 (Worksheet 2 - English)
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https://drive.google.com/open?id=1OCEux1qzGHg7t2FnaFlMF1TXcOtK-mri (Worksheet 3 - English)
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https://drive.google.com/open?id=15Pw-nyfJ9JC4EcJeseJvaZOL6Gs8Tq46 (Worksheet 4 - English)
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=Assessments=
 
=Assessments=

Revision as of 10:48, 28 December 2017

Go To: TNSB-Science-Grade 8

[edit]

[Contributor - Gayathri Arun Kumar]


Dear Volunteer,

Please find below the detailed lesson plan and PPT for this chapter in the language mentioned against the respective link. While the lesson plan will give an overall flow of the lesson, the PPT will include lesson flow as well as the presentations for the class.


https://drive.google.com/open?id=1yKbcWz59dEtfvAp1S67kM8w6llRkp59e (Lesson Plan - English)


https://drive.google.com/open?id=1RDZ5bAOpHVW-g8IjXvXCo0TlVwyXYkrW (PPT - Tamil)


You may use the content as it is or download and modify them to suit the students requirements.


If you feel any major modifications or additions are carried out by you in the form of adding any new activity, presentations, videos etc. we request you to send the modified version to submitcontent@evidyloka.org for enabling upload the modified version.


The worksheets of the lesson can be accessed from the worksheet tab.


Kindly rate the lesson plan and share your suggestions and comments on the lesson plan in the comments box below. Your valuble suggestions and comments will help us to improve the content.



[Contributor - Kripa S]


https://www.youtube.com/watch?v=ZNmjBOVIAME (talk from a distance)


[Contributor - Gayathri Arun Kumar]

Lesson Plan version 1.1 activities

1. Materials-Drawing sheet, a protractor, a plane mirror, torch light.

Procedure-I arrange the drawing sheet, protractor and a plane mirror as shown in the diagram. Using the protractor I draw a normal at a point. Then I draw the number of lines at different angles. From the torch light, I make a ray of light to pass along a line and draw the path of the reflected ray. I measure the angle of reflection. I repeat the experiment for different angles of incidence and I measure the corresponding angle of reflection and tabulate the measures.

2. Materials: wood, window panes, table tops, polished granite surfaces, paper. Procedure: Let us look ourselves through the surface of all these objects.

3. Materials-plane mirrors, a candle.

Procedure: I keep a burning candle before a plane mirror. I hold another plane mirror at an angle to the first mirror. Then I count the number of images formed. I do the same by keeping the mirrors at different angles and I count the number of images formed.

4. Materials: Two rubber strips of the same length and width. Procedure: I take two rubber strips of the same length and width. I put them one above the other. I hold them at both ends and stretch them tight. I blow air through the split between them.


[Contributor - Gayathri Arun]

https://drive.google.com/open?id=1Q0tIEEP1P3tpxCkJDnCy-jsoE9io8oXW

[Contributor - Gayathri Arun Kumar]

Lesson Plan version 1.1 PPT

https://drive.google.com/open?id=1RDZ5bAOpHVW-g8IjXvXCo0TlVwyXYkrW (PPT - Tamil)


[Contributor - Ramkee]

Term Transliterated Term Translated Term
Reflection ரிபிலெக்ஷன் ஓளி எதிரொளிப்பு
Parallel Beam பரலல் பீம் இணைக்கற்றை
Convergent Beam கான்வெர்ஜெண்ட் பீம் குவிக்கற்றை
Divergent Beam டை வெர்ஜெண்ட் பீம் விரி கற்றை
Incident ray இன்சிடென்ட் ரே படு கதிர்
Reflected ray ரி பிளெகடட் ரே எதிரொளிப்புக்கதிர்
Angle of incidence ஆங்கில ஆப் இன்சிடென்ஸ் படுகோணம்
Angle of reflection ஆங்கில ஆப் ரிபிலெக்ஷன் எதிரொளிப்பு படுகோணம்
Refraction ரிபிரக்ஷன் ஓளி விலகல்
Total Internal Reflection டோடல் இன்டெர்னல் ரிபிலெக்ஷன முழு அக எதிரொளிப்பு
Medium மீடியம் ஊடகம்
Amplitude அம்பிலிட்டுட் அதிர்வெண்
Time Period டைம் பீரியட் அலைவுக் காலம்
Frequency of Vibration பிரீக்வென்ஸி ஆப் வைபரேஷன் வீச்சு
Prongs ப்ரொங்ஸ் புயங்கள்
Audible ஆடிப்பில் செவியுணர்
Inaudible இன் ஆடிப்பில் செவியுணரா
Optical Fibre ஆப்டிகல் பைபர் கண்ணாடி ஓளி இழை
Fibre Optics பைபர் ஆப்டிக்ஸ் ஒளியிழை இயல்
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