As part of her honours project Mary Roughley visited Mosspits Lane Primary School in Wavertree, Liverpool, during Science week. She has spent an afternoon with each year 6 class and engaged with the pupils on topics such as scales in the universe, the concept and calculation of magnification and the power of using microscopy in biology. As part of her honours project, Mary has planned the session and developed the supporting worksheets and instruction protocols. After a short presentation, the whole class went out onto the playground to collect their own live samples to view under the microscope, the class were then split into three groups to rotate between the three exercises that were organised. The most popular activity was collecting and viewing their samples. The pupils were given magnifying glasses and also had access to the Zeiss stemi labscope to enable them to examine their specimens. They collected insects, worms, leafs, bread crumb, aphids, hairs…They really enjoyed this activity and were fascinated and very excited by what they could see with a microscope: worms digestive tubes, tiny unsuspected hairs on insect legs and “a starry night sky” (salt imaged with transmitted light)!
The pupils also made their own magnifier using water in petri dishes. They learnt how to calculate magnification and used this knowledge to calculate and compare the magnification of a magnifying glass and the magnifier that they made. They realised that their magnifier made with a drop of water was as good as a commercial magnifying glass.
For the third activity, the pupils used the schools computers and an online programme to learn more about scales. The software showed objects of different sizes ranging from galaxies to a proton nucleus. This activity reinforced the idea that microscopes are essentials to biologists, as many things are much too small to be seen with the naked eye. This is what Mary says about her experience: “I received excellent feedback from the pupils. They thoroughly enjoyed the session and some mentioned that they would like to become biologists. They particularly enjoyed using the microscope and collecting their samples and a number of pupils said that the only bad part of the session was packing away! As a proof of the success of the half-day, the teachers had to fight for the children to go out at playtime. They preferred observing their samples under the microscope. I have personally really enjoyed delivering the sessions, I found the experience very rewarding especially when the pupils said they wanted to be biologists! The experience has also made me consider teaching as a career.” This is what the children wrote about the session: “‘I wish the session was longer!!; I liked seeing the intestines in the worm, it was gross but cool!; The bacteria in the pond water was really cool.” It was a very enjoyable experience at all levels: for the children, the teachers, the undergraduate student involved and me, the academic supervisor. Thank you to Mosspits Lane to have worked with us on this project.
Violaine Sée, IIB