TNSB - 6 - Science :: The Cell
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[Contributors - 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=1OgVncNVlKzRbTovXA7Q7BLmtKcqh05BG (Lesson Plan - English)
https://drive.google.com/open?id=17c-YVRf6rP82FuO374RfpmurvoTZPi4j (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 - Rini Jose]
https://drive.google.com/open?id=1-eoGrcexqcCarD3xJRfUDejUEBlU8Hzd (English)
[Contributor - Gayathri Arun Kumar]
Lesson Plan version 1.1 Videos
https://www.youtube.com/watch?v=zTa4j6eRV0s (Cell structure and functions)
https://www.youtube.com/watch?v=MD5kvqO96Os&vl=en (Cells, structure, functions)
https://www.youtube.com/watch?v=URUJD5NEXC8 (Cell structure)
https://www.youtube.com/watch?v=NC6bxildusI (Cells - Sturcture, parts and functions)
https://www.youtube.com/watch?v=CvnFpsHV_HY (Types of cells)
https://www.youtube.com/watch?v=nR-lsNDVhcY (Animal cell)
https://www.youtube.com/watch?v=FBGeBmWUXPE (Plant and animal cell model)
https://www.youtube.com/watch?v=-gDyUlMvngs (Cytoplasm and its function)
[Contributor - Gayathri Arun Kumar]
Lesson Plan version 1.1 activities
1. Aim: To observe the structure of a single cell (Hen’s egg).
Materials Needed: A hen’s egg and a plate.
Method: Crack the shell and break open the egg in a plate. Observation: The egg has a yellow part and a transparent part surrounding it. The white transparent part (albumin) is jelly-like and represents the cell’s cytoplasm, while the yellow part (yolk) is thicker and represents the cell’s nucleus. On the internal side of the shell can be seen a thin membranelike structure, which represents the cell membrane.
2. Aim: To observe onion peel cells under a microscope
Materials Required: Glass slide, cover slip, onion, iodine solution, knife and microscope.
Procedure: Take an onion and cut it into two halves along its length. Takeout one of its fleshy leaves. With the help of a pair of forceps, remove a transparent, thin peel from the inner surface of the leaf. Take a glass slide and put a drop of water at the centre. Place the peel on the drop of water. Pour a drop of iodine solution on the peel. Now place a cover slip over the material. Observe under the microscope
Observation: You will be able to see rectangular cells of the onion peel, with a nucleus in each of them.
3. Aim: To rectify the variation between 2-D shape and 3-D shape.
Material required: Polythene bag, water, marble ball (golligundu)
Procedure: Take a polythene bag with water. Put a marble ball into the polythene bag. Then draw a picture in your note book about this task.
If you draw a picture in round shape. It will be called 2-Dimenstional picture.
If you draw a picture in spherical shape it is called 3-dimenstional. Result: Now you understand your misconceptions. So the animal cells are spherical in shape and structure, not in a round shape.
[Contributor - Gayathri Arun Kumar]
Lesson Plan version 1.1 PPT
https://drive.google.com/open?id=17c-YVRf6rP82FuO374RfpmurvoTZPi4j (Tamil)
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