cover of episode Best of: The future of science education

Best of: The future of science education

2025/1/31
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The Future of Everything

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Russ Altman: 我认为当前的科学教育体系没有充分准备学生应对互联网上充斥的错误信息。即使在小学和中学阶段,也应该教会学生如何识别和抵制科学错误信息,培养他们的批判性思维能力,让他们能够辨别信息来源的可靠性。 我们需要让学生从小就养成对信息来源进行质疑和批判性思考的习惯,而不是盲目相信他们所听到或看到的任何信息。这对于他们未来的发展至关重要,也关系到整个社会的健康发展。 Jonathan Osborne: 我认为当前的科学教育存在一些根本性的问题。首先,许多人误以为学生在高中毕业时就能具备足够的知识来独立评估科学证据,而不需要依赖专家。互联网的普及加剧了这种误解,因为人们可以轻易地获取大量信息,从而产生一种错觉,认为自己能够独立判断信息的真伪。 然而,事实并非如此。学生们往往缺乏必要的专业知识来评估复杂的科学信息,他们更需要学习如何识别信息来源的可信度,而不是试图自己去验证信息的正确性。我们需要培养学生的‘认知谦逊’,让他们认识到自身知识的局限性,并在需要时寻求专家帮助。 为了应对科学错误信息,我们需要教会学生三个关键技能:第一,识别信息来源是否存在利益冲突;第二,判断信息提供者是否是该领域的权威专家;第三,评估该信息是否与科学界的共识相符。这些技能可以通过互动式挑战和问题来培养,让学生在实践中学习如何批判性地评估科学信息。 此外,传统的科学教育往往以培养未来的科学家为目标,而忽略了培养公众的科学素养。这导致许多人对科学的理解停留在一些零散的知识点上,而缺乏对科学思想和方法的深入理解。我们需要改变这种现状,从宏大的科学思想入手,激发学生的学习兴趣,并通过讲述科学发现背后的故事,让学生更好地理解科学的本质和魅力。 最后,现有的科学教育标准更新速度太慢,难以适应社会发展变化。我们需要更灵活的标准,赋予教师更大的自主权,让他们根据学生的兴趣和实际情况调整教学内容,才能真正提高科学教育的效率和质量。

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Hi everyone, it's your host Russ Altman from the Future of Everything. With the tremendous amount of information available to us today, the ability to discern what's reliable from what's not is crucial. It's crucial so that we can make the best decisions for ourselves, and also it's crucial to combat the spread of misinformation. In 2023, I sat down with Jonathan Osborne, an expert in science education, to talk about the tools that our students, and really all of us,

need to have to critically evaluate science news and information. I hope you'll tune into this episode again to hear about the three valuable skills Osborne says we should be teaching our students and ourselves so that they can identify and resist scientific misinformation. Before we jump into this episode, a reminder to please rate and review it on your favorite podcast app. It'll help us grow and it'll help other listeners figure out what this is all about.

Science education is absolutely critical and these days the internet is filled with bad science and yet science is wonderful. It's like a miracle. It gives us insight into how life evolved, how the planet started, how the world works. So even in grammar school and in middle school we need to give students tools to be suspicious about things that they hear and to figure out if what they're listening to is from a reliable source, an expert, and something that they can take to the bank.

Jonathan Osborne is a professor of education at Stanford University, and he studies science education. He's worried about misinformation, and he'll tell us that the situation is pretty dire, and we need to act soon to make sure that we outfit the future generations with the tools they need to navigate truth and falsehoods in science. Jonathan, you're an expert in science education, but we're also in the midst of an era of misinformation. The internet and other news...

News, I use in quotes, sources, especially in the area of science, can be very misleading. So what is the state of our educational practices for young people in preparing them for this world? The short answer to that, which I will elaborate on, is not good. Please go on.

And it's not good really, I think, for two fundamental reasons really. One is there's a kind of delusion out there by people involved in educating people about science that by the time they get to the end of high school, they'll have enough knowledge to evaluate the evidence for themselves.

And this means that they don't need to rely on experts. And the internet reinforces that in that kind of way because you've got access to this unlimited information. You think, well, why do I need to go to an expert? I can look it up for myself.

And the answer is, you don't understand what they're talking about is one of the reasons. So that you need to generate what I would call more epistemic humility in people, which is to recognize that our knowledge is bounded. And there are times when we have to call on experts. But what you notice with a lot of the misinformation sites is they...

understand this and they appeal to your ego in the sense of evaluate the evidence for yourself. You know, you go on 911truth.org, for instance, and you'll see up in the top left, okay, evaluate the facts for yourself. Well, the facts have actually been cherry-picked and you don't actually have the ability to evaluate the facts for yourself. So that's one of the reasons I think really we've got it the wrong way around. We actually have to start by saying,

we have to prepare students to interact with scientific expertise. The question that invites is. - Yes, okay, so we're gonna get to how to do that in a moment. I was hoping in preparing for our interview that you were gonna tell me that because these young people are growing up in the era of the internet,

They have received a special pre-inoculation to misinformation and that therefore they're in much better shape and that actually it's our generation who grew up way more trustworthy, who is having trouble with the internet, but they are having less trouble. It sounds like that's not your message today. That's certainly not my message, okay? It's not the message. It's not particularly my research, but it's the research of all my graduate students. It's the research of my colleague, Sam Weinberg, which shows that actually they are really poor.

because they are deluded into thinking that they can work out the evidence themselves. And time and time again, when you show them a dodgy website from the Harvard Institute about climate change or something else, they will stay on the page and try and evaluate the arguments on the page, which they don't have the expertise to do. What they should be doing is not saying, is this correct, which they can't work out the answer to. They should be saying, is this credible?

And they are not good at doing that. In fact, they're probably worse than our generation because we've been around long enough to think, eh, this looks a bit dodgy. Yes. Okay. So what do we do about this? I mean, this is your area of expertise, science education, especially in grammar and middle school when the minds are being formed and the intellectual habits, so to speak, will be created. What do we need to do?

Well, you really need to do three things, I would say, but one of them is pretty immediate from that point of view, which is if you're confronted by any scientific claim, there are really three things that you need to do. One is you need to ask, is the person or the institution putting this forward, do they have a conflict of interest?

So if it's an institute, who funds it, for instance, in that sense? If you open another tab and you put in the name of the institute, you can pretty rapidly find out who's funding it, for instance, either the Hartland Institute or co2science.org from that point of view. You can do that. And so if there's a content of interest, that raises a red flag. Right.

If there isn't a conflict of interest, then you've got to say, well, okay, is the person making this claim a credible card-carrying scientist in that discipline?

It's no good having an evolutionary biologist making claims about cosmology or vice versa. They don't do that in that kind of way. This is the kind of stuff that's not taught to students. Being a scientist doesn't mean very much. It's a scientist in the discipline. It

Is it a credible institution? What are the credible institutions in that way? Then the third question you've got to ask is the goal of science is the achievement of consensus.

And so if there is a consensus and somebody is going against that consensus, for instance, like Robert Kennedy Jr. on vaccines, they better be an expert and they better have pretty good evidence for their questioning of the consensus. I mean, again, these kind of purveyors of misinformation know this. On climate change, you've got these fake consensuses, the Leipzig Declaration of non-experts. None of them are experts in climate change.

Now, somebody might say, oh, that's all a bit dull. How are you going to teach all that? That's exactly what I was going to ask. I was going to say, it's so fun to read the conspiracy theories about science. And what you've just outlined sounds so reasonable. And I can't imagine getting a 12-year-old to take the time to do that. No, you get them to do it by giving them a challenge or a problem, OK? Saying, OK, should we believe this website? OK, OK.

You group of three can look at it and see if you can think of arguments for believing it. You group of three can look at it and see if you can find out arguments for not believing it.

So you learn this by doing it in that kind of way. And then, you know, once you've engaged in it, I think the messages can be built on saying, well, why didn't we believe in this? This person, yeah, he had a PhD, but what was the PhD in this way? It's kind of a detective story for them in that way. When are young people cognitively able to kind of understand the challenge that you just outlined and

start implementing it like I can imagine you know you talked about credentials I'm thinking about my five-year-old grandson credentials are not a thing in his life yet but they will become a thing you know at some point so how do we develop mentally do appropriate things at the various stages of schooling yeah that's a good question I gotta be honest and say at the moment it's all kind of based on a hunch of what we can do all I know is that we

We produced this report last year about science education misinformation, and one of the significant contributors to it was a guy from Finland who's been working on developing a Finnish curriculum in media literacy. And they start in elementary school, I mean, obviously about grade three and four, and they give them simple kind of exercises trying to check whether this is factually correct. And then they keep building on this and building in more complex issues as they go up.

So, and I think to be quite honest, the answer is, well, what you're really asking for is a kind of developmental learning progression. What are the basic competencies? What are the higher order competencies? And I don't think we've really mapped that out yet from that point of view. But I think the kinds of things you're asking about, we're asking about are a conflict of interest. I would have thought you can easily do that in middle school in that way. Yeah.

because they're starting to get a sense of, well, is this funded by the tobacco industry? Is this funded by the oil industry? Who's paying for this? So, okay. So this is very good. And I know that this touches many of the other things that you've looked at. One of the things you've published a lot about is student attitudes towards science and towards learning science. That has to be intimately involved with this because they have to care and they have to have some sort of model of science. So

Separate from the issue of misinformation, how are we doing at giving, especially students who are not going to be scientists, the fundamentals to be a citizen in 2023? And by the way, I should say, let's take a moment to say the reason this podcast exists is

is because I perceived in 2016 that maybe I could make a small contribution in increasing the understanding of science and technology and engineering by bringing it and letting people tell their stories so that people could see that these scientists are people motivated by passion and also motivated by the search for truth. So I'm very interested in your thoughts about where we are and how well we've prepared people to even engage with these issues. Again,

I think the history of science education really ever since its sort of formal inception is not very good. The simple reason for that is if you look at the rationales people give for science education, ever since they insisted that everybody must learn science, is they say, oh well, it will enable you to be a critical consumer of scientific information, it will introduce you to the beauty and awe and wonder of science, and the intellectual and creative achievement that it is.

The answer is it doesn't. And why doesn't it do that? Because it's the final goal, which they sort of add on at the end, which is the preparation of the next generation of scientists, which predominates. And the form of education you've got for that, as you yourself probably know, and I've been through it, is you have to go...

take the long slog through the dark kitchen before you get to the hall of awe and wonder. And most people lose interest long before then. And another way, I think, of testing this is you say to any of your non-scientific friends, what do you remember of value from your school science education? Now, I'd guarantee that most of them will mention some sort of funny flashbang, bang experiment or whatever it is,

But then you say to them, but what idea do you remember that really changed how you think about the world? And I think you're going to get a lot of them hesitating in that sense. Now, that to me is a tragedy. And it's a tragedy because science is one of the great intellectual achievements of our contemporary societies. And that has not been explained to them in that kind of way. And it's not explained to them because it starts with doing all this kind of detailed stuff

about forces, interactions, cells and their function. Now I'm not going to say you don't need to know some of that. I'm going to say that we're doing it from the wrong end of the telescope.

What I want is the big idea, first of all. Look, you know, you live on a... You're one of, I don't know, I think it's 8 billion people, one of 8 billion people living on a tiny planet circulating a sun, which is actually a star, which is part of millions and billions of stars, which is part of millions and billions of galaxies. How do you think we know that? That's crazy from that point of view. You know, the obvious idea, explanation for day and night,

is that the sun moves. I mean, after all, you get up in the morning, okay, and it's in the east and it goes to the west.

I've got a crazy idea to tell you. Now, I'm sorry, okay, we're on a spinning earth. How do I know that? Or even, what about all these people who think the earth is flat? Why should we believe that the earth... Then I think you sort of start to engage people. I'm not saying everybody from that point of view. A lot of it's about applications. Some people really want to know about the applications of science. How does your TV work? How does your computer work? And there's that kind of story to be explained as well, and that's fine.

But if you, as I say, if you concentrate on the bricks of the edifice and you never show what the edifice is about, then not surprisingly, a lot of people think,

Well, what's this? There was a science educator in the 1952 paper about this. And he said, well, most people end up with a miscellaneous facts. I mean, some of those facts are useful. Undoubtedly, if you go to the doctor, it does help to know some facts about the structure and function of the human body. But I do think we really ought to say, what are the big ideas here?

that people should carry away from their science education so that when you ask my question, what do you remember that changed your thinking about the material world? And how do we know that's true to people? You put that question to people, they would give you some decent answer and they don't. So you've made a compelling case for that. And let's just go down to the nuts and bolts because as a professor of education, I think you'll know this. Who do we have to convince

to change things like because i don't think many of us know who holds the keys to the curricular practices at all different stages i know as a faculty member i have some say in how my discipline is taught at stanford university but really before that at the at the grammar school is this boards of education is this textbook writers who do we have to appeal to to make these changes

You're asking the really important question, I think, and I'm reflecting on a career of trying to make these kinds of changes for the past 25 years. And what I've seen time and time again is when you make the convincing argument, we had a report in 1998 called Beyond 2000 Science Education for the Future. We needed a different form of science education in the UK.

We managed to convince a lot of people. We managed to convince the people, the equipment of the Board of Education who set the curriculum. There was a curriculum written and it was all put into place. But there's resistance. There's resistance from what I might call institutional conservatism. And then there was a change of government with an emphasis simply on knowledge and not knowing any of the other features or how science works in that sense or ideas about science.

So it got killed. Actually, there's a similar thing going on at the moment in California with Algebra 2, which is in 2019. I don't know if you've read about this, but in 2019, it was agreed that this course on data science done by my colleague Joe Bowler would be an alternative to Algebra 2, but it's currently being killed by the complaints from various people. And the California Board of Education is about to say, well, it's not rigorous enough, so that's going to get killed.

So I've kind of reluctantly come to the conclusion that people like me or people like you or trying to write curriculum and change it is unlikely to happen. The problem we've got at the moment is a system where there are not enough gaps or opportunities for teachers to pursue their interests and their student interests.

So I think actually the best thing that we can do at the moment is to say that if you impose this curriculum, which is supposed to be for science for all, and then you insist that 99% of the time is devoted to that minority, this is wrong. You have to cut that back significantly. So the current standards, for instance, there's 200 performance expectations. They're not all at the same level.

cut it to 100, give that teacher freedom, respect their autonomy, respect them as a professional, give them agency to do some of the things which they think matter to their kids here and now. And into that space, obviously, people like me, people like you can say, have you thought about doing this? Have you thought about doing this? Have you thought about doing this? And I just think that's got more chance of changing the education. Because after all, and you've

probably know this yes well my motivation for science i think was just came from an early age i was just fascinated by things and i kept going through the long dark classical electrodynamics being the one that really nearly kills it all but interest is what carries you a long way and interest is generated by the teacher and the teacher has to have enthusiasm and they have enthusiasm if they've got agency in that sense so that's

my current take on it, but I haven't got any proof of that, but that's just my reflections of now. - This is the Future of Everything with Russ Altman, more with Jonathan Osborne, next.

Welcome back to the Future of Everything. I'm Russ Altman and I'm speaking with Professor Jonathan Osborne from Stanford University. In the last segment, Jonathan told us some of the concerns he has about misinformation about science and some of the tools that he believes we need to give young people, even grammar school and middle school students, to make sure that they can learn to vet the information they're presented with.

In this segment, he'll tell us that there are different forms of scientific argumentation and they don't all get the same attention from the press and from teachers. He's going to argue that we need to give teachers more freedom to introduce scientific arguments of a wide variety and ways to check that they're all sound.

So Jonathan, in your work, you discuss argumentation and teaching scientific argumentation. You made a little bit of a reference to maybe we should set up teams of middle schoolers who figure out if a website is good or bad or reliable or not reliable. But more generally, tell me what is this idea of scientific argumentation and where do we want to get students in terms of their ability to understand or even implement argumentation?

Yeah, I mean, I think basically, argument is core to science. I mean, that's what you and I are doing. If we write any kind of paper, we're mounting an evidence-based argument on the whole, or it's a theoretically-based argument based on scholarship to convince people that some of the claims we're making are true. And the trouble with a lot of the teaching of science is that students are introduced to a lot of entities, what you might call an ontological zoo of rather strange entities, ions, atoms, molecules, stuff they can't see.

And they have to really accept it on faith because they're taught it by their teacher. So in some senses, it often always, for a lot of students, acquires the aura of a religion in that sense. Now, it's not a religion. It's an evidence-based argument. And you can illustrate that with all kinds of arguments at any kind of age from that point of view.

So, for instance, one of the ones we were talking about is how do we know that the Earth is a sphere rather than flat? After all, it looks flat. Why should we believe that it's a sphere? What's the evidence that convinces us of that? I had a wonderful one in my own education, for instance, which is that

We spent, I think this was again in middle school, we spent about three weeks growing copper sulphate crystals. That was great fun. We had a big competition. Who's got the biggest one? Okay. And then the teacher said to us at the end, he said, oh, what are you nice about these copper sulphate crystals? And we looked at them and said, well, they're all blue. Okay. I said, no, haven't you noticed something else? What was that? He said, oh, well, yeah, they're all the same shape. Yeah, they're all the same shape. Yeah, but they're different sizes. How could that be? He said, okay.

And we said, "Oh, don't scratch your head." And he said, "Have you ever been to the Greengrocers?" And we thought, "Yeah, what's this got to do with that?" "You know, there's the Stacks of Oranges." "Yes."

If any of you know, it doesn't matter if it's a big stack or a small stack, okay? They've all got the same lines and shapes, okay? But they're made out of particles which we call oranges. It's just like that with your cup of sulphate. It's made out of particles in the same kind of way. And it was a wonderful elegant argument for particle theory of matter in that sense, which has stuck in my brain ever since because

I tend to react to good arguments and think that's good. Now, I'm just asking for more examples of that. I mean, for instance, what's the evidence that we believe in the theory of evolution? And there are stories to be told about that. And kids like stories.

Because stories are the things that you and I use to communicate all the time. We use them as evidence in that way. And we don't tell enough stories about science. Now, part of that actually is the problem that actually a lot of us don't know the stories about science because we were never told the stories about science. So how do we get out of that kind of...

cycle. It's funny that you say that about people because I'm very aware one of the early scientific mentors I had said science is a great career but one of the things you have to become comfortable with is that your discoveries may be remembered long after you are forgotten.

And there is truth to that because the discoveries are kind of the goal. On the other hand, as you just pointed out, the stories are very important in order to keep people engaged and thinking about that this is a human endeavor. We're not robots. We're not chat GPT. And that we're

we're deciding what questions to ask and then we're trying to answer them and we're doing the best that we can and it's an imperfect approximation. But so I'm really struck by your statement about stories 'cause I agree with you and yet we were told as young scientists that it's not about your story, it's about the knowledge that you create and that might've been wrong. - Yeah, that might be wrong but also it's a story about how that knowledge was created in the first place and that kind of stuff.

And it's often quite a complicated story in that way. I mean, just take something simple. Well, maybe not so simple, but vaccines. What's the story behind vaccine? How did people first have this crazy idea of putting a disease into somebody in order to prevent them being infected? It just sounds wrong in that kind of...

kind of way so where did they get that idea from and what was the path that led them to it it wasn't something that was instantaneous it wasn't one lone genius working on their own it was a succession of work done by different people certain names have stand out in that process

Obviously, Jenna passed it. There is a story. As you look at scientific argumentation, is it different across fields? Do physicists and biologists make similar arguments or have you seen differences? Are those differences important? Basically, three forms of argument that are made in science. One is the hypothetical deductive argument, which predominates a lot in physics, particularly when mathematics is involved. Increasingly, there's quite a lot of that in biology.

as well with some of the models that people are developing and making predictions on the back of models. But the second form of argument which we often forget about is the abductive argument which is the inference to best possible explanation. That's the form of argument that

I just illustrated for you with this story about argument from atoms. This is an inference to the best possible form of explanation. It's the form of argument that Darwin used with the finches. It's the form of argument that Wegner used for continental drift in that kind of way. It's quite common. We are confronted with complexity and we have to look at it and think, well,

Possibly this is happening. This is the best fit with the evidence. And then there's obviously the inductive argument that you make, for instance, that all metal oxides are bases is the obvious kind of one. All mammals are warm-blooded. Those are inductive generalizations which we have to make because we've got to make the world simpler than it appears in that way. So they do vary across the...

I mean, I couldn't go through all the arguments used in all the sciences, but I would say I think there is more use of inference in biology than there is in physics or the physical sciences. Yes, and that makes sense. And I like that because as you were describing these three different modes of reasoning, they're all present in all fields. But I think some of them are used more in one field than the other.

The physicists have their mathematics and they like the deductive mathematical approaches. The biologists are overwhelmed with observations, don't have much theory, and so they wind up doing inference from observations without too much of a deductive theory.

This actually makes sense. So do you think that this needs to be made explicit or is it best for students to learn this a little bit more in a subtle way by example? I'm not sure you would want to give those three. Maybe in high school or college, but for the middle schools and the grammar schools, you probably want them to experience those logics before you name them. But I'm asking.

Oh, no, no, I think you definitely want to experience them fully and name them. But I just think, I mean, the problem with the description of science, you know, the standard introduction to the scientific methods, it just tells you about the hypothetical deductive method. And so it makes, to me, it really is an insult to science because it makes it seem like it's some kind of algorithm. You just turn the wheels and you get this. There's no creativity or intelligence that goes into it or imagination that goes into it. Actually, it's...

If you look at all, I have this thesis that basically most of what you're teaching in science is a set of crazy ideas from that point of view. The idea that the air has mass, the idea that you look like your parents because every cell in your body carries a chemically coded blueprint about how to reproduce you. Who would ever have conceived of these ideas? That's crazy.

And so once you see yourself as a teacher of crazy ideas, you start to be like, "Hey, I've got to convince people to believe in basically what they're all going to say." "Why would I believe that?" And then you've got to make use of evidence to convince them of that.

And then you start to see the richness of the story. - So that's very good. And in our last minute, I just wanted to get to this issue of timing. And in your comments and in your writings, you've talked about we should have a sense of urgency. The rate at which teaching standards are updated may not be ideal at a time when the world is moving very quickly. So talk to me about this sense of the time scale at which science education should evolve.

Basically, the problem with the most current set of standards, I would say, internationally at the moment are the US ones, which is the framework for K-12 science education. I was on that group. We wrote that in 2011. Looking back now, I think we made all kinds of mistakes. This is inevitable.

And what's really happened is the context has changed enormously because all of a sudden you have the rise of Web 2.0, the rise of misinformation, and we have no capacity to adjust for that because the next set of standards will not be written for 10 years. This, I think, is why I'm going to argue that actually you have to create any set of standards you create, you have to create with space for people to add, adapt them, and make them. And that's terribly important for the teachers because they're only going to really teach it with passion if there's a sense of ownership.

And they only have a sense of ownership if they have a sense of agency. So you have to leave space in standards for that because you cannot predict what's going to happen in the next 10, 20 years that might need addressing.

And that's the problem we've got at the moment. Are there bright ideas about how to give the teachers that freedom? I'm sure the teachers are in favor of it. A subset of the parents may be in favor of it. I don't know about the politicians. Well, I think the bright idea is less is more. You look internationally and...

there's clear evidence that some of the countries that have less time do a better job in that sense because they have a clearer sense of which goals they want to achieve rather than spreading it across, well, we've got to do all of these. These are the ones that really matter. And so it's our responsibility as science educators, as scientists to say, this is what really matters. The rest of it's up to you if you're particularly interested in it.

Thanks to Jonathan Osborne. That was the future of science education. Thank you for tuning into this episode. Don't forget, we have zillions of episodes in our back catalog. You can listen to all of them if you want, and you'll be up to date on the future of everything.

Please remember to hit follow in whatever app you're listening to, to make sure you're always alerted, usually on Fridays, to all the new episodes. You can connect with me on social media platforms like LinkedIn, Threads, Blue Sky, and Mastodon. I'm at R.B. Altman on most of them, but at Russ B. Altman on Threads. You can also follow Stanford Engineering on social media at Stanford ENG or at Stanford School of Engineering.