How fungi help trees to communicate

Freya, Year 13, explores how trees are able to communicate and help each other using a network of fungi in the soil.

Underneath your feet there could be possibly 300 miles of fungi stacked in the soil. This special network of fungi , called the mycorrhizal network , brings together fungi and trees in a symbiotic relationship which helps trees to communicate, coined the ‘wood wide web’. You may have unknowingly seen mycorrhizae before; it is long and white and looks a bit like silly string.

When a tree seed is germinating, its roots grow towards the fungi in the soil. In return for nutrients and water from the fungi, trees send sugars down to them. This is of important value to fungi as they cannot photosynthesise (and so make their own sugars, which are needed for growth). Not only does the network connect the fungi and trees, but also the different trees in a given area. All the trees whose roots grow into mycorrhizae are linked in a network. This allows the trees to communicate.

Using the mycorrhizal network, a tree that has been taken over by a certain pest can send danger signals to other trees. When other trees pick up this signal, they release their own chemicals above ground to attract the predators of the pest towards them, thereby reducing the population of pests.

Amazingly, when a tree ‘knows’ it’s dying it will do everything it can to aid the survival of the trees around it. Researchers noted that as an injured tree was dying, it sent all of its carbon down through its roots into the mycorrhizal network so that it could be absorbed by neighbouring trees. In doing so, these neighbouring trees were strengthened.

The driving researcher behind this work, Suzanne Simard, found that trees will help each other out when they’re in a bit of shade. She used carbon -14 trackers to monitor the movement of carbon from one tree to another. She found that the trees that grew in more light would send more carbon to the trees in shade, allowing them to photosynthesise more and so helping them provide food for themselves. At times when one tree had lost its leaves and so couldn’t photosynthesise as much, more carbon was sent to it from evergreen trees.

This discovery could be used in the future to reduce the disastrous effects of deforestation. If loggers keep the network of fungi intact, with many of the oldest trees still present, new trees planted will be able to utilise and reuse carbon more efficiently thanks to the wood wide web.

Hockey XI final home game!

The first hockey team have their final home match of the season on Wednesday at 2:30 against Ibstock Place.

If you are free it would be lovely to have your support to cheer them on, for some of them this will be their last hockey match for Wimbledon at home.

Weekly News 19.11.18 to 25.11.18

There have been some fantastic individual and team success in sport for Wimbledon High over the last week.

The U12 & U13s played St John’s Leatherhead on Saturday and there was a win and a draw to celebrate against tough opposition.

Olivia Gibbs and Amelie Penwarden made the Surrey Satellite Academy for netball.

Isabella Atwell, Amelie Rees, Martha Villa Topple have all made Surrey hockey squads for this season.

In rowing, the year 9s thrashed Putney High School over the weekend. At Hampton Head the year 10s finished third out of forty four high standard crews.

Saskia Brewster finished fourth out of forty two entries in J17 singles. Alissia Blase and Amy Brooks finished ninth out of forty six in the J16 doubles.

Keep up the hard work girls!

 

Rehearsal, Rehearsal, Rehearsal – how repetition helps us learn

Anna, Year 13, discusses not only how rehearsal is the key to a good performance but also how the repetitive nature of rehearsing can aid studying.

For those who favour the more ‘academic’ subjects, drama may seem like a discipline which requires substantially less work than the sciences due to the propagated belief that a student does not need to revise as much, as well as the active nature which makes it more of a practical subject than academic. However, while there is certainly more action involved than with other subjects (with ‘acting’ being the most vital part of theatre for an audience), the claim that revision is not necessary is entirely false.

When speaking of acting, an audience member often reviews what they can see in front of them in one moment as, more often than not, they are not privy to the behind-the-scenes rehearsal process. While it is true that the audience impact is a vital part of theatre performance and theory, it is the rehearsal process itself which allows the final finished product to flourish; without it, the actor would not know how to act the line in order to achieve the greatest impact for the audience. Having studied drama myself for the entirety of my Wimbledon High attendance, as well as gotten involved in various plays and musicals over the years, I have come to think of this rehearsal process as high-intensity interval training (without the exercise, thankfully) which results in muscle memory and allows an actor to create the intended effect.

Rehearsing is primarily an active, practical activity; the repeated action over time enhances memory, which then lets an actor read off book (without a script) without any doubt of what they are going to do next or what their line is. For my fellow kinaesthetic learners – who Professors Dunn and Dunn describe as ‘students who require whole-body movement to process new and difficult information’ – this is already a behaviour that we are familiar with; when I am trying to memorise tricky English quotes or mathematic formulae, it is not uncommon to see me pacing back and forth or jumping up and down in order to enhance my learning. Viewing rehearsal as a study form automatically demonstrates academic benefits, as this subconscious form of learning that is routine for a drama student or actor can be employed elsewhere as a studying technique where ‘spaced repetition’ (that is, learning the same thing over a long time with regular intervals) where repetition over a month will result in 90% memorisation. This allows for more consolidation of information, and so ultimately the person will remember more than if they simply crammed the night before. Not only this, but it allows for muscle memory (a form of memory where there isn’t conscious awareness of the actions) to be developed; with resultant feedback received in rehearsal from the director, it means that a person not only develops skills and learning but allows more information to be absorbed as a result.

Therefore, when considering the long-term repetitive nature of rehearsal, it seems logical that it can be labelled a form of active revision; the act of rehearsal instills both useful studying tools in a person without them even realising, as well as a fun way to showcase messages to audiences with the eventual performance.

The importance of collaborative learning

How can we encourage collaborative learning? Alex Farrer, STEAM Co-ordinator at Wimbledon High, looks at strategies to encourage creative collaboration in the classroom.

Pupils’ ability to work collaboratively in the classroom cannot just be assumed. Pupils develop high levels of teamwork skills in many areas of school life such as being part of a rowing squad or playing in an ensemble. These strengths are also being harnessed in a variety of subject areas but need to be taught and developed within a coherent framework.  Last week we were very pleased to learn that Wimbledon High was shortlisted for the TES Independent Schools Creativity Award 2019. This recognises the development of STEAM skills such as teamwork, problem solving, creativity and curiosity across the curriculum. Wimbledon High pupils are enjoying tackling intriguing STEAM activities in a variety of subject areas. One important question to ask is what sort of progression should we expect as pupils develop these skills?

The Science National Curriculum for England (D of E gov.uk 2015) outlines the “working scientifically” skills expected of pupils from year 1 upwards. Pupils are expected to answer scientific questions in a range of different ways such as in an investigation where variables can be identified and controlled and a fair test type of enquiry is possible.

However, this is not the only way of “working scientifically”. Pupils also need to use different approaches such as identifying and classifying, pattern seeking, researching and observing over time to answer scientific questions. In the excellent resource “It’s not Fair -or is it?” (Turner, Keogh, Naylor and Lawrence) useful progression grids are provided to help teachers identify the progression that might be expected as pupils develop these skills. For example, when using research skills younger pupils use books and electronic media to find things out and talk about whether an information source is useful. Older pupils can use relevant information from a range of secondary sources and evaluate how well their research has answered their questions.

The skills that are used in our STEAM lessons at Wimbledon High in both the Senior and Junior Schools utilise many of these “working scientifically” skills and skill progression grids can be very useful when planning and pitching lessons. However, our STEAM lessons happen in all subject areas and develop a range of other skills including:

  • problem solving
  • teamwork
  • creativity
  • curiosity

Carefully planned cross-curricular links allow subjects that might at first glance be considered to be very different from each other to complement each other. An example of this is a recent year 10 art lesson where STEAM was injected into the lesson in the form of chemistry knowledge and skills. Pupils greatly benefited from the opportunity to put some chemistry into art and some art into chemistry as they studied the colour blue. Curiosity was piqued and many links were made. Many questions were asked and answered as pupils worked together to learn about Egyptian Blue through the ages and recent developments in the use of the pigment for biomedical imaging.

There are many other examples of how subjects are being combined to enhance both. The physiological responses to listening to different types of music made for an interesting investigation with groups of year 7. In this STEAM Music lesson pupils with emerging teamwork skills simply shared tasks between members of the group. Pupils with more developed teamwork skills organised and negotiated different roles in the group depending on identified skills. They also checked progress and adjusted how the group was working in a supportive manner. A skill that often takes considerable practise for many of us!

Professor Roger Kneebone from Imperial College promotes the benefits of collaborating outside of your own discipline. He recently made the headlines when he discussed the dexterity skills of medical students. He talks about the ways students taking part in an artistic pursuit, playing a musical instrument or a sport develop these skills. He believes that surgeons are better at their job if they have learned those skills that being in an orchestra or a team demand.  High levels of teamwork and communication are essential to success in all of those fields, including surgery!

Ensuring that we give pupils many opportunities to develop these collaborative skills both inside and outside of lessons is key. We must have high expectations of progression in the way that pupils are developing these skills. Regular opportunities to extend and consolidate these important skills is also important. It is essential to make it clear to pupils at the start of the activity what the skill objective is and what the skill success criteria is. It is hard to develop a skill if it is not taught explicitly, so modelling key steps is helpful as is highlighting the following to pupils:

  • Why are we doing this activity?
  • Why is it important?
  • How does it link to the subject area?
  • How does it link to the real life applications?
  • What skills are we building?
  • Why are these skills important?
  • What sort of problems might be encountered?
  • How might we deal with these problems?

Teacher support during the lesson is formative and needs to turn a spotlight on successes, hitches, failures, resilience, problems and solutions. For example, the teacher might interrupt learning briefly to point out that some groups have had a problem but after some frustrations, one pupil’s bright idea changed their fortunes. The other groups are then encouraged to refocus and to try to also find a good way to solve a specific problem. There might be a reason why problems are happening. Some groups may need some scaffolding or targeted questioning to help them think their way through hitches.

STEAM lessons at Wimbledon High are providing extra opportunities for pupils to build their confidence, and to be flexible, creative and collaborative when faced with novel contexts. These skills need to be modelled and developed and progression needs to be planned carefully. STEAM is great fun, but serious fun, as the concentration seen on faces in the STEAM space show!

Twitter: @STEAM_WHS
Blog: http://www.whs-blogs.co.uk/steam-blog/

Year 3 right on target

Year 3 have enjoyed being engineers in the STEAM space this week. They fired projectiles using rubber band catapults “Into the Woods”, with the aim to be right on target. The only problem was that there were many tubes, bottles and rubber bands to choose from, some of which were far better for the job than others. Year 3 had to select carefully, assemble their launcher and then test to see if it worked. They then needed to make many adjustments, changes and improvements. It was fantastic to see such impressive engineering going on. If you would like to try the activity at home you can find the instructions on the excellent ExpeRimental website here.

Fantastic success in the UK Bebras Challenge 2018!

In the last few weeks girls in years 9-13 have been participating in the UK Bebras Challenge. This is a fun challenge that tests computational thinking skills. More info about the challenge is available here.
We have just found out that the pupils who took part in this challenge put in an amazing performance. Congratulations to Sienna, Rebecca and Kira who were best in school in their different age categories. 24 girls in total gained distinctions which is a tremendous achievement. Many girls have also found out that their scores placed them in the top 10% nationally. This means that they are now invited to participate in  the invitation only TCS Oxford Computing Challenge, organised by Hertford College, Oxford. Congratulations and good luck go to Sienna, Katherine, Amy, Sabrina, Biba, Ksenia, Rebecca, Phoebe, Helena, Katie, Sasha B, Saavi, Elena, Anahita, Izzy, Tilly, Toni, Jessie, Sasha, Rose, Abigail, Juliet, Eloise, Manuela, Lalita, Rebecca, Lottie, Alice, Anna and Kira.