Why Aren’t We Listening To The Evidence On Practical Science?

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We’ve all seen the headlines on school science practicals – they’re too boring, or too predictable, or just not happening often enough.

But when new research comes along, with evidence of what good practical science looks like, it seems we’re not listening.

Part of the debate about practical science rests on the fact that we don’t even agree on the basics: what makes a good practical lesson? What are practical lessons supposed to achieve? How can schools improve the quality of their practical science?

In 2015, Ofqual removed practical exams from science GCSEs and A levels. Instead, practical skills and knowledge are tested through written exams. Students are supposed to do some practicals – but if they perform poorly, it doesn’t affect their grade.

The goal was to give teachers the freedom to do more interesting, open-ended experiments with their students – not just follow recipes at the lab bench. But many people disagreed with these changes, including the Education Secretary at the time, Nicky Morgan, who said it would harm the next generation of scientists, and the Wellcome Trust who said the reformed A levels won’t reflect students’ abilities. The professional bodies complained that many of the existing practical exams for A level had already been interesting, open-ended investigations, exactly the kind of experiments that the changes were supposed to favour – and they had just been scrapped.

There is a risk that teachers use their new freedom to cut the number of practicals they offer students. Most teachers believe that for A levels, the changes have been positive – but not all do.

So, what is new?

The Gatsby Foundation’s new report, Good Practical Science, draws together research from around the world on good quality practical science at school. The report authors visited teachers and education experts in 19 schools in Australia, Finland, Germany, the Netherlands, Singapore and the USA – all countries which perform very highly on the PISA rankings that compare countries’ education systems.

Sir John Holman, who led the report, and his colleagues identified ten benchmarks for good practical work. The benchmarks are pragmatic and workable. They include things like ‘teachers know the purpose of any practical activity’ and ‘each lab has enough equipment for students to work in small groups’. Yet, a sample of 10% of the UK’s schools found that none of them achieved more than seven out of ten of the benchmarks. A third of UK schools didn’t achieve a single benchmark.

You might think these benchmarks are just for science teachers – that groups of science teachers and technicians need to get together and work through the benchmarks, one by one. But most of the Good Practical Science report’s recommendations are aimed at people who aren’t teachers, including government, Ofqual, Ofsted, teaching unions, teacher trainers, science professional bodies, funders, and others.

To achieve the benchmarks, science departments need support from this wider group – and that means those of us who work to support schools need to consider how we contribute to these recommendations.

Teachers face tough decisions every day: shall I do a practical or a revision class? Shall we arrange a trip to a local science centre or university, or will that disrupt the teaching timetable too much? We can’t just keep adding more and more tasks to teachers’ already hefty workloads.

At the British Science Association, we are committed to helping schools achieve these benchmarks. Benchmark Eight is ‘investigative projects: students should have opportunities to do open-ended and extended investigative projects’. For over thirty years, the British Science Association and partner organisations have provided the CREST Awards scheme, which supports five to 19-year-olds to do their own open-ended, investigative projects in science, technology, engineering or maths. We recently launched a new digital platform that enables all teachers, right across the UK, to sign up for a free CREST account. This year sees our biggest-ever programme of grants for schools, to enable them to do engaging, investigative science activities with their students and local communities.

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This Elastic Glue Can Seal Wounds In Under 60 Seconds

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A highly-elastic glue could be the future of treating wounds inflicted in car accidents or war zones, after it was shown to successfully seal open incisions in less than one minute.

The “potentially life-saving” MeTro gel, which is just administered directly to the site of the injury by squirting it from a syringe, could transform the way surgery is performed by negating the need for common staples and sutures.

Professor Anthony Weiss said: “The potential applications are powerful.”

Elastagen Pty Ltd

A team of biomedical engineers, from the University of Sydney, developed the adhesive substance, which is similar to silicone sealants used around bathroom and kitchen tiles, according to Professor Weiss.

Once applied to the area, it is treated with UV light and sets within 60 seconds.

It is also at this stage that it can be treated with a built-in degrading enzyme that can be modified to determine how long it lasts (between hours and months) before disintegrating. Unlike stitches that would have often required removal.

Once it has degraded, there is no signs of toxicity left in the body.

Elastagen Pty Ltd

So far it has been most useful for sealing wounds in body tissues that continually expand and relax, such as lungs, heart and arteries, that are otherwise at risk of re-opening with classic methods of stitching.

It also works on internal wounds that are often in hard-to-reach areas and have typically required staples or sutures due to surrounding body fluid hampering the effectiveness of other sealants.

Elastagen Pty Ltd

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This Elastic Glue Can Seal Wounds In Under 60 Seconds

check out this post on This Elastic Glue Can Seal Wounds In Under 60 Seconds

A highly-elastic glue could be the future of treating wounds inflicted in car accidents or war zones, after it was shown to successfully seal open incisions in less than one minute.

The “potentially life-saving” MeTro gel, which is just administered directly to the site of the injury by squirting it from a syringe, could transform the way surgery is performed by negating the need for common staples and sutures.

Professor Anthony Weiss said: “The potential applications are powerful.”

Elastagen Pty Ltd

A team of biomedical engineers, from the University of Sydney, developed the adhesive substance, which is similar to silicone sealants used around bathroom and kitchen tiles, according to Professor Weiss.

Once applied to the area, it is treated with UV light and sets within 60 seconds.

It is also at this stage that it can be treated with a built-in degrading enzyme that can be modified to determine how long it lasts (between hours and months) before disintegrating. Unlike stitches that would have often required removal.

Once it has degraded, there is no signs of toxicity left in the body.

Elastagen Pty Ltd

So far it has been most useful for sealing wounds in body tissues that continually expand and relax, such as lungs, heart and arteries, that are otherwise at risk of re-opening with classic methods of stitching.

It also works on internal wounds that are often in hard-to-reach areas and have typically required staples or sutures due to surrounding body fluid hampering the effectiveness of other sealants.

Elastagen Pty Ltd

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This Elastic Glue Can Seal Wounds In Under 60 Seconds

check out this post on This Elastic Glue Can Seal Wounds In Under 60 Seconds

A highly-elastic glue could be the future of treating wounds inflicted in car accidents or war zones, after it was shown to successfully seal open incisions in less than one minute.

The “potentially life-saving” MeTro gel, which is just administered directly to the site of the injury by squirting it from a syringe, could transform the way surgery is performed by negating the need for common staples and sutures.

Professor Anthony Weiss said: “The potential applications are powerful.”

Elastagen Pty Ltd

A team of biomedical engineers, from the University of Sydney, developed the adhesive substance, which is similar to silicone sealants used around bathroom and kitchen tiles, according to Professor Weiss.

Once applied to the area, it is treated with UV light and sets within 60 seconds.

It is also at this stage that it can be treated with a built-in degrading enzyme that can be modified to determine how long it lasts (between hours and months) before disintegrating. Unlike stitches that would have often required removal.

Once it has degraded, there is no signs of toxicity left in the body.

Elastagen Pty Ltd

So far it has been most useful for sealing wounds in body tissues that continually expand and relax, such as lungs, heart and arteries, that are otherwise at risk of re-opening with classic methods of stitching.

It also works on internal wounds that are often in hard-to-reach areas and have typically required staples or sutures due to surrounding body fluid hampering the effectiveness of other sealants.

Elastagen Pty Ltd

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Humans First Left Africa Because Of Climate Change

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We know that humans first started to migrate our of Africa around 60,000 years ago, what we’ve never been entirely sure of is what caused the to do it.

New research led by a geoscientists from the University of Arizona has found however that the reason touches on a subject hat’s very much in the news now: Climate change.

Using the world’s most important collection of sediment cores from the deep sea the researchers were, incredibly, able to actually determine the temperature and climate from 60,000 years ago.

Previous research has suggested that when humans moved into Eurasia around 40,000-70,000 years ago north Africa needed to be wetter than it is now. What they found was very different.

raisbeckfoto via Getty Images

Using the sediment samples the team found that Africa had undergone a major transformation. Its previously fertile ‘Green Sahara’ had started to dry out, in fact at around the time humanity started to leave the Sahara was even drier than it is now, and a lot colder.

“Our data say the migration comes after a big environmental change. Perhaps people left because the environment was deteriorating,” explains Jessica Tierney, UA associate professor of geosciences.

“There was a big shift to dry and that could have been a motivating force for migration.”

What’s almost as impressive as their discovery is how they discovered it in the first place.

To create a long-term temperature record for the Horn of Africa the team analysed 4-inch segments of the sediment core with each section accounting for around 1,600 years.

LAMONT-DOHERTY EARTH OBSERVATORY

They then analysed the layers for chemicals called alkenones which are made by a very specific type of marine algae. As the temperature changes, so too does the composition of the chemicals being made by the algae, effectively allowing the team to take a temperature reading from 60,000 years later.

To figure out the rainfall the team did something equally as impressive.

gilaxia via Getty Images

They analysed the leaf wax that had blown into the ocean. Plants alter the chemical composition of their leaf wax depending on how wet or dry the climate is. By looking at the composition of the wax from that precise period in time they could tell exactly how wet or dry it was.

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Nobel Prize In Chemistry 2017 Awarded For Imaging The Molecules Of Life

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The Nobel Prize in Chemistry 2017 has been awarded to three researchers, Jacques Dubochet, Joachim Frank & Richard Henderson, for their work on imaging the molecules of life.

The three, including Cambridge University’s Richard Henderson, were able to develop a revolutionary new electron microscopy imaging technique that can see these molecules at the atomic level.

“This method has moved biochemistry into a new era,” the Royal Swedish Academy of Sciences said in a statement awarding the $1.1 million) prize.

“Researchers can now freeze biomolecules mid-movement and visualize processes they have never previously seen, which is decisive for both the basic understanding of life’s chemistry and for the development of pharmaceuticals.”

The breakthrough has been compared to being able to actually photograph a person on the Moon from Earth in minute detail.

Traditionally one of the biggest hurdles in using electron microscopes is that the water surrounding these molecules simply evaporates in the vacuum chamber.

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Nobel Prize In Chemistry 2017 Awarded For Imaging The Molecules Of Life

check out this post on Nobel Prize In Chemistry 2017 Awarded For Imaging The Molecules Of Life

The Nobel Prize in Chemistry 2017 has been awarded to three researchers, Jacques Dubochet, Joachim Frank & Richard Henderson, for their work on imaging the molecules of life.

The three, including Cambridge University’s Richard Henderson, were able to develop a revolutionary new electron microscopy imaging technique that can see these molecules at the atomic level.

“This method has moved biochemistry into a new era,” the Royal Swedish Academy of Sciences said in a statement awarding the $1.1 million) prize.

“Researchers can now freeze biomolecules mid-movement and visualize processes they have never previously seen, which is decisive for both the basic understanding of life’s chemistry and for the development of pharmaceuticals.”

The breakthrough has been compared to being able to actually photograph a person on the Moon from Earth in minute detail.

Traditionally one of the biggest hurdles in using electron microscopes is that the water surrounding these molecules simply evaporates in the vacuum chamber.

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Nobel Prize In Chemistry 2017 Awarded For Imaging The Molecules Of Life

check out this post on Nobel Prize In Chemistry 2017 Awarded For Imaging The Molecules Of Life

The Nobel Prize in Chemistry 2017 has been awarded to three researchers, Jacques Dubochet, Joachim Frank & Richard Henderson, for their work on imaging the molecules of life.

The three, including Cambridge University’s Richard Henderson, were able to develop a revolutionary new electron microscopy imaging technique that can see these molecules at the atomic level.

“This method has moved biochemistry into a new era,” the Royal Swedish Academy of Sciences said in a statement awarding the $1.1 million) prize.

“Researchers can now freeze biomolecules mid-movement and visualize processes they have never previously seen, which is decisive for both the basic understanding of life’s chemistry and for the development of pharmaceuticals.”

The breakthrough has been compared to being able to actually photograph a person on the Moon from Earth in minute detail.

Traditionally one of the biggest hurdles in using electron microscopes is that the water surrounding these molecules simply evaporates in the vacuum chamber.

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Online Safety: A Lesson All Students Need To Learn

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August this year was an exciting month for those students finishing sixth form and college. After spending months disconnected from the world to focus on their studies, their A-Level results were released. For many, it was an opportunity to celebrate and let off some steam before setting off for pastures new. The prospect of university and expanding their minds, surroundings and opinions is too good to turn down for many people. It is where, some say, you ‘find yourself’. But during this rollercoaster ride of meeting new people and experiencing new things, it’s important to stay safe.

From spraying traceable SmartWater on possessions, to using anti-drink spiking straws, safety lessons are instilled into students by the bucket load as they leave for higher education. However, there isn’t much advice concerning their digital safety. We live in an age where there are just as many people looking to do you harm online as there are in real life and it’s important for students to stay vigilant. While it’s essential to enjoy their new home, they need to ensure their personal details are secure and that they’re the only one that can truly ‘find themselves’ online.

Recent attacks like the one on UCL in July show that universities are prime targets when it comes to cyberattacks. Students’ details are highly sought after and hackers have a number of ways of targeting them. From phishing scams like the one seen in September, where cyber scammers posed as the Student Loans Company, to the creation of a completely fictitious university, cyber-attackers are not short of creativity. Students need to be aware of their online behaviour and learn how to best mitigate risks. By following a few simple steps, students won’t have to worry about who can see their information, leaving them lots of extra time to attend those all-important lectures.

P1ck1ng Pa55w0rd5

Some people, no matter how many times they’re told, simply never change their passwords. They stick with predictable standbys and default options like ‘123456’ or even worse, ‘password’. Remembering them can be a chore, yes, but ensuring you have different passwords for each account is a necessity. If you don’t have the memory to remember all these different variations then a password manager is the answer for you.

Password managers greatly simplify the entire password process, enabling you to secure all your passwords behind one master password. All you have to do is remember one secure password and your accounts will auto-fill with their applicable passwords whenever you need access. Remembering one password isn’t too hard, right?

Keeping Social Media Social

Adding new friends on social media is a first step for many students cementing friendships. With so many fresh faces in such a short period of time it can be hard to keep track, but it really is imperative. Thousands of fake profiles are made every day with malicious intent, so be aware that it isn’t difficult for those same impersonators to list a university on their profile, too. Make sure you don’t accept anyone you haven’t physically met, no matter how attractive they are.
Sampling the offerings of your new surroundings is essential if you’re to feel at ease in your new home.

But as you post pictures on Instagram, or check-in on Facebook, remember that this information is permanent and available for many to see. It’s easier than you might think to accidentally reveal sensitive information such as your card details, address and when you’re out of the house, through pictures on social media. Be aware that most social media platforms are, in their essence, public.

Sharing Isn’t Always Caring

University is a time of sharing, from the accommodation you live in to the many group presentations you’re expected to do. Some of the most commonly shared things are the communal computers in the library. These shared devices can be used by dozens of people in one day, so remember to never click yes when asked to save your details. Keep track of which devices you’re logged in to and always sign out at the end of each session.

Wi-Fi hotspots are important for doing work while you’re out and about, but these open networks can also be ripe territory for hackers. When connected to the same public Wi-Fi, hackers can see which webpages you access and depending on how secure the sites you’re visiting are, your browsing history, searches, personal login information, photos, videos, emails, and comments. Use a Wi-Fi inspector app to analyse the security of the connection, or invest in a Virtual Private Network (VPN) to surf the net securely.

Be Cautious

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Online Safety: A Lesson All Students Need To Learn

check out this post on Online Safety: A Lesson All Students Need To Learn

August this year was an exciting month for those students finishing sixth form and college. After spending months disconnected from the world to focus on their studies, their A-Level results were released. For many, it was an opportunity to celebrate and let off some steam before setting off for pastures new. The prospect of university and expanding their minds, surroundings and opinions is too good to turn down for many people. It is where, some say, you ‘find yourself’. But during this rollercoaster ride of meeting new people and experiencing new things, it’s important to stay safe.

From spraying traceable SmartWater on possessions, to using anti-drink spiking straws, safety lessons are instilled into students by the bucket load as they leave for higher education. However, there isn’t much advice concerning their digital safety. We live in an age where there are just as many people looking to do you harm online as there are in real life and it’s important for students to stay vigilant. While it’s essential to enjoy their new home, they need to ensure their personal details are secure and that they’re the only one that can truly ‘find themselves’ online.

Recent attacks like the one on UCL in July show that universities are prime targets when it comes to cyberattacks. Students’ details are highly sought after and hackers have a number of ways of targeting them. From phishing scams like the one seen in September, where cyber scammers posed as the Student Loans Company, to the creation of a completely fictitious university, cyber-attackers are not short of creativity. Students need to be aware of their online behaviour and learn how to best mitigate risks. By following a few simple steps, students won’t have to worry about who can see their information, leaving them lots of extra time to attend those all-important lectures.

P1ck1ng Pa55w0rd5

Some people, no matter how many times they’re told, simply never change their passwords. They stick with predictable standbys and default options like ‘123456’ or even worse, ‘password’. Remembering them can be a chore, yes, but ensuring you have different passwords for each account is a necessity. If you don’t have the memory to remember all these different variations then a password manager is the answer for you.

Password managers greatly simplify the entire password process, enabling you to secure all your passwords behind one master password. All you have to do is remember one secure password and your accounts will auto-fill with their applicable passwords whenever you need access. Remembering one password isn’t too hard, right?

Keeping Social Media Social

Adding new friends on social media is a first step for many students cementing friendships. With so many fresh faces in such a short period of time it can be hard to keep track, but it really is imperative. Thousands of fake profiles are made every day with malicious intent, so be aware that it isn’t difficult for those same impersonators to list a university on their profile, too. Make sure you don’t accept anyone you haven’t physically met, no matter how attractive they are.
Sampling the offerings of your new surroundings is essential if you’re to feel at ease in your new home.

But as you post pictures on Instagram, or check-in on Facebook, remember that this information is permanent and available for many to see. It’s easier than you might think to accidentally reveal sensitive information such as your card details, address and when you’re out of the house, through pictures on social media. Be aware that most social media platforms are, in their essence, public.

Sharing Isn’t Always Caring

University is a time of sharing, from the accommodation you live in to the many group presentations you’re expected to do. Some of the most commonly shared things are the communal computers in the library. These shared devices can be used by dozens of people in one day, so remember to never click yes when asked to save your details. Keep track of which devices you’re logged in to and always sign out at the end of each session.

Wi-Fi hotspots are important for doing work while you’re out and about, but these open networks can also be ripe territory for hackers. When connected to the same public Wi-Fi, hackers can see which webpages you access and depending on how secure the sites you’re visiting are, your browsing history, searches, personal login information, photos, videos, emails, and comments. Use a Wi-Fi inspector app to analyse the security of the connection, or invest in a Virtual Private Network (VPN) to surf the net securely.

Be Cautious

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