JACB - 8 - Science :: Cell
Go To: JACB-Sci-Grade 8
Course Content / Subtopic list:
- Discovery of a cell , structure
- Types and shapes of a cell , no. of cells
- Tissues
- Parts of a cell - cell membrane , cytoplasm , nucleus
- Functions of various parts of a cell like cell membrane , cytoplasm and nucleus
- Parts of nucleus - nuclear membrane , nucleoplasm , protoplasm
- Nucleolus- plant cells and animal cells
Expected Learning Outcome:
SWBAT-
- Explain about the discovery of a cellIdentify various types and structures of cells , Define tissues
- Identify various parts of a cell
- State and explain various functions of different parts of a cell
- Identify different parts of a nucleus , represent structure of cell and nucleus from diagram
- Differentiate between animal cells and plant cells
Lesson Plan
[Contributor - Sasmita Kant Maurya]
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=1Fsn4cONPU1I7A-1AtiP_PlO1pmnN4vkP (Lesson Plan - English)
https://drive.google.com/open?id=1vQp5qq4gNio98F03BrcjDS7ppoTa89Cx (PPT - Hindi)
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.
Videos
[Author - Kripa S]
https://www.youtube.com/watch?v=nR-lsNDVhcY (animal cell -English)
https://www.youtube.com/watch?v=Rv_URdelN2g (animal cell- Hindi)
[Contributor - Sasmita Kant maurya]
Lesson plan version 1.1 videos
https://www.youtube.com/watch?v=Rv_URdelN2g (Cell - Hindi)
https://www.youtube.com/watch?v=At2aYLm2-II (membrane)
https://www.youtube.com/watch?v=w9z9rnjhA2g
https://www.youtube.com/watch?v=RtNnl0ae4Fc
https://www.youtube.com/watch?v=tmRa8uTG7eQ
https://www.youtube.com/watch?v=knsszvyk6Cc
Images
[Author - Kripa S]
http://wm.schoolofdragons.com/SoD/UploadedFiles/small-screenshots/cell-structure.jpg (cell structure)
http://www.solpass.org/science6-8-new/s7/images-life/unicellular.png (unicellular organisms)
https://i.ytimg.com/vi/-zafJKbMPA8/maxresdefault.jpg (Types of cells example 1)
https://image.slidesharecdn.com/chapter6-111018063004-phpapp02/95/chapter-6-cell-structure-and-function-2-728.jpg?cb=1318919739 (Types of cells example 2)
Activities
[Author - Kripa S]
Boil a hen’s egg. Remove the shell. What do you observe? A white material surrounds the yellow part. White material is albumin which solidifies on boiling. The yellow part is yolk. It is part of the single cell. You can observe this single cell without any magnifying device.
Note: This activity can be done by students at home. Alternatively either the Class Assistant or few students can get boiled eggs to the school to observe this
[Contributor - Sasmita Kant Maurya]
Lesson Plan version 1.1 activities
1. Ask 4 students to form a closed loop by holding hands and ask another four to form another loop. Make them stand next to each other and discuss how they are looking like two cells. Thus, emphasize, why Robert Hooke named the box like structures he saw first as cell- it reminded him of a small room.
2. Ask the students to estimate the length of their classroom. Then ask them to cross check their estimate with the measurement on their ruler- Do they know the difference between millimeter and centimeter? This should make them understand the concept of measurement, thus they can understand the size of a cell- how it is so small.
3. The students should draw the diagrams of basic cell structure with its three parts. Then they should list out all the organelles found in the cytoplasm. To understand the concept better, ask groups of students (3 to 4 in a group) to take a rough sheet of paper and tear it in such a way that they have a hole in the middle. Ask them to put that sheet on the floor, drop some water within that hole. What do they observe? Does the water fill the hole and does not spread further (initially)? Explain that the hole is like a cell and the border of the hole is like cell membrane, where water is cytoplasm. The students will observe that after some time water starts wetting the border of the page- this can be used to explain permeability in a very broad sense.
4. Ask 4 students to form a closed circle by holding hands and ask 5 more students to surround these 4 by holding hands. So, now we will have two rings. Ask the students to identify the cell wall and cell membrane in these two rings. The activity can become fun of you ask the students (forming cell membrane) to move in clockwise direction and those forming cell wall to move in anti-clockwise direction. This activity will not only reinforce the concept of cell wall, but also revisit the concept of clockwise and anticlockwise movements.
Additional Aids
[Contributor - Sasmita kant Maurya]
Lesson Plan version 1.1 PPT
https://drive.google.com/open?id=1vQp5qq4gNio98F03BrcjDS7ppoTa89Cx
[Contributor - Ankita Srivastava]
https://drive.google.com/open?id=166iMGX6qmWuu3P82OCgZUFfQE4UZimLH
Worksheets
[Contributor - Neha Mittal]
https://drive.google.com/open?id=1sMuJ-C73kgjbwgErE8AJt8HnidZW7jdp (Worksheet 1)
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