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Light Shadows and reflections (view source)
Revision as of 11:13, 4 December 2023
, 11:13, 4 December 2023no edit summary
=== Resources: ===
=== Resources: ===
Shadows are sometimes sharper and sometimes more blurred, why?
Shadows are sometimes sharper and sometimes more blurred, why?
Let children ask some of their questions related to shadow formation, encourage other students to think about answering to those questions thus encouraging peer-peer interaction with sufiicient guidance from facilitator.
{{#widget:Iframe
|url=https://www.scootle.edu.au/ec/viewing/L756/index.html
|width=950
|height=500
|border=0
}}
Allow children to explore <nowiki>https://www.scootle.edu.au/ec/viewing/L756/index.html</nowiki> to understand more about shadow formation. Help children explore casting shadows and matching shadows section for a better understanding about shadow formation.
Let children ask some of their questions related to shadow formation, encourage other students to think about answering to those questions, thus encouraging peer-peer interaction with sufficient guidance from facilitator.
'''Pin-hole camera making:'''
'''Pin-hole camera making:'''
Let children make a model of pin-hole camera by referring to <nowiki>https://www.youtube.com/watch?v=mBPLL01mNjA</nowiki>, <nowiki>https://www.arvindguptatoys.com/toys/Pinholecamera.html</nowiki>. Discuss the following questions with children.
Let children make a model of pin-hole camera by referring to <nowiki>https://www.youtube.com/watch?v=mBPLL01mNjA</nowiki>,
{{#widget:Iframe
|url=https://www.arvindguptatoys.com/toys/Pinholecamera.html
|width=950
|height=500
|border=0
}}
<nowiki>https://www.arvindguptatoys.com/toys/Pinholecamera.html</nowiki>. Discuss the following questions with children.
Why is the image seen in pinhole camera is inverted?
Why is the image seen in pinhole camera is inverted?
EA: Light from the top of the object after passing through the pinhole reaches the bottom of the camera screen and light from the bottom of the object passing through the pinhole reaches the top of the screen. This causes the inversion of the image.
EA: Light from the top of the object after passing through the pinhole reaches the bottom of the camera screen, and light from the bottom of the object passing through the pinhole reaches the top of the screen. This causes the inversion of the image.
What happens when the size of the hole in a pinhole camera is made bigger?
What happens when the size of the hole in a pinhole camera is made bigger?