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Discussion of the week (Primary): Microscopes

By Tim Bradbury posted 14-05-2021 11:20

  
I've really enjoyed this new discussion from @Karen Brunyee looking at the use of microscopes in primary classrooms.  As a secondary chemistry specialist I am always excited to see how practical working in science is incorporated into the primary classroom.  It's amazing to see how everyday items can be repurposed as scientific apparatus however, sometimes there is no easy alternative with microscopes being a good example. 

In the discussion there are some great suggestions from @Nicholas Souter and @Francesca Campbell for resources and where you can source some great value microscopes.

Have you used microscopes in the primary classroom? Join the discussion here​ to share your ideas with fellow members and maybe pick up some tips and tricks to develop your own practice too!​​

Edit: I have just remembered... @Karen Hornby posted this item in the 11-19 science group last month... It may be of interest and links with this topic on microscopes:

Some news from @Nicholas Souter about an article on designing a lego microscope (thank you to Nicholas for sharing)

This abstract and the conclusion within this paper looks as if it will be useful/of wider interest.  The pdf of the full paper is available at:

Designing a high-resolution, LEGO-based microscope for an educational setting | bioRxiv

Abstract

Microscopy is an essential tool in many fields of science. However, due to their costs and fragility, the usage of microscopes is limited in classroom settings and nearly absent at home. In this article we present the construction of a microscope using LEGO® bricks and low-cost, easily available lenses. We demonstrate that the obtained magnification and resolution are sufficient to resolve micrometer-sized objects and propose a series of experiments that explore various biophysical principles. Finally, a study with students in the age range of 9 to 13 shows that the understanding of microscopy increases significantly after working with the LEGO microscope.

 

Conclusion

Using LEGO and low-cost, easily available lenses, it is possible to construct a microscope that can resolve micrometer-sized objects, with a resolution that is close to the diffraction limit of light. A series of experiments is suggested, covering different fields of natural sciences, that can be conducted with household ingredients. The modular design of the microscope itself also lets it easily be incorporated in a curriculum on optics. A preliminary study with 8 students in the age range of 9 to 13 shows that the understanding of microscopy increases after working with the LEGO-microscope.

Since the design of the microscope presented here is only one of many possible configurations, customization is highly encouraged.

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24-05-2021 19:06

Hi
We are a primary school and looking to buy a  few digital microscopes. This one has been recommended -Pancellent Wifi Digital Microscope... just looking for your thoughts and advice. Thanks in advance

19-05-2021 10:27

I think your use of the USB tablet combo to record the finds is a great use of technology appropriate to the task, rather than just because.

The old world solution was to very carefully and skillfully make a pencil drawing in the field and then enhance it once back at base. This probably leads to some embellishments that were never there in the first place due to the brain's ability to interpret rather than simply record.

Mind you that's also a really good lesson and an ability that some of my ASD children have ( lack of interpretation ) so they produce realistic images rather than simplified cartoon versions.

17-05-2021 11:37

Bill,

Totally agree, always love low end solutions. I learnt a lot from resources like Ladybird Books as a kid. Making a battery from a Lemon and a zinc and copper nail. Although , I wouldn't  advise sticking your tongue on it as it describes in the book? :-)

Although , I think technology has enhanced the use of some scientific equipment. I had great success with primary pupils, using very cheap USB microscopes (£6), connected to tablets out in the field. Really portable and effective. Pupils were able to observe and record their findings for study back in the classroom , by taking photos of their specimens with USB microscope. Also a number of them could gather around a device to make their observations.. We always took the microscopes outside with us.

16-05-2021 19:03

I love all this tech stuff
I also love all the mechanical stuff
I love all the history 
What I don't love is the loss of all the material that hasn't got to the internet YET!
And I love the unfortunately named appropriate technologies that give an old yet effective solution to the developing world why forgetting to ensure our children have the chance to enjoy them and learn from the ground up!
A microscope starts in the field with 2 fingers and a thumb and develops to a piece of card and a pair of compasses and eventually a visit to the technology room a slip of metal and nail.
What's with we need lego and any lens will do nonsense.
SMART small meaningful achievable targets or would that be Science Mechanics Attitude Rudimentary technology.
Building a solution with high tech abilities is to miss the point, if you can build from nothing you can do so much more with the knowledge you just gained - know the why, the how and apply it.
That's how my classes run anyway.