|  | | | At a Glance |  |
|  | Science
| |  | Secondary
|  | Year 7
|  | Key Stage 3
| |  | Lesson
| |  | Groupwork
| |  | Class Teaching
| |  | First Thought |
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This activity designed by Sarah Quantick (The Community College Whitstable) makes good and easy use of the Intel Play Microscope which most UK schools have. (Otherwise it can be had for about 40 pounds from ebuyer.com while stocks last). The Teachers document has the info - but here are the elements of what's intended.
Activity starter what are living organisms made of?
Show pupils the PowerPoint to stimulate discussion on differences between animal and plant cells. You can find more pictures at Cells Alive www.cellsalive.org or search for Animal Plant Cells at www.google.com/images
Show / hand out different pictures of cells to groups of four, students have to tell the rest of the class the name of their cell and its function
Main activity looking at cells
Show students how to make the onion cell preparation (see pic here). This they do and view under a microscope and a digital microscope. Students print out their pictures and label different parts of the cell.
If possible they draw (or draw around) a cell in the printout.
Plenary Parts of cells
Write the following words on the board (see PowerPoint) and allocate them to separate groups: nucleus, cytoplasm, chlorophyll, chloroplasts, cell wall, cell membrane. In their groups, using books, students have to arrive at a definition for their word. The groups reshuffle as below:
Organise the class as RAINBOW GROUPS ie number each member of a group of four as 1,2,3,4. When the groups have arrived at a definition, all the ones join together to form a new group; all the twos join together to form a new group and so on. Each person in the new group explains the definition of their keyword to the group. | | | To produce a clear picture of an onion cell and identify its different parts
This is a resource for pupils age 11 - eg for Key Stage 3 Scheme of Work Unit 7A - Cells - What are cells like? | | | | Just before this you will have introduced students to the fact that all living organisms are made up of cells and different cells have different functions. | | | | Have a fast printer - or use a low-res / black printout | | |  What are cells like - demo
- The teacher demos the making of an onion skin 'prep'
 What are cells like - pupils
- Do you know your onions?
Instructions on how to make an onion skin 'prep'
What are cells like - teachers notes
- A bit more about the lesson plan and its objectives
 What are cells like - lesson starter images and more
- A collection of images showing microscopes and several types of cell - without comment. Show as and when.
What are cells like - procedure slideshow - optional (650kb)
- Run this as students prepare onion skin for the microscope. Download this separately if the Internet runs slow. Requires Powerpoint.
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