Teachers have historically resisted attempts to get them out of the business of pedagogy and curriculum development, which many of them are manifestly unsuited for, and instead have them concentrate on classroom management, progress tracking, and limited individualized instruction.
I'm a big fan of that transition taking place, which may involve taking 100 units of work currently done by teachers (i.e. people who are, aspirationally, highly skilled and highly educated) and replacing it with 40 units of work done by teacher's aides (semi-skilled labor like, ahem, many teachers in the status quo), 40 units of work done by teachers (close to the ideal of today's teachers), and N units of work done by a handful of curriculum experts whose amortized cost per class taught is rounding error next to the teacher's salary.
I mean, last year BCC essentially added twenty full time teachers to the US just by preventing people with masters degrees from preparing for class by cutting construction paper with scissors and then writing on the construction paper with markers for more than an hour at a time. That's hideously inefficient use of resources... and there are still hundreds of thousands of teachers who do it the bad way.
> I mean, last year BCC essentially added twenty full time teachers to the US just by preventing people with masters degrees from preparing for class by cutting construction paper with scissors and then writing on the construction paper with markers for more than an hour at a time.
I love the description and love your HN contributions as much as anyone, but that sounds just a wee bit inflated. I would think BCC purchasers more likely to use the hours saved as leisure rather than as additional professionally productive time. You also dismiss the possibility of these teachers finding another satisfactory program in BCC's hypothetical absence.
(Unless you've already factored out those factors before you arrive at the "20 full time" figure. Then please ignore me.)
My wife and I were discussing tonight the hilarity of the Wisconsin teachers union situation, about how everyone involved (and screaming) seemingly misses the point.
If society wants public school, that is a school that is administered and funded by the government, then by definition you are choosing to have teachers' salaries decided by politicians and bureaucrats. In order to change salaries, legislation is required. In order to enact legislation, you have to form special interest groups (in this case unions) to represent large swaths of voters, as politicians only listen to votes.
Instead, consider the idea of eliminating public school. With all of the money back in the public's pockets instead of in government coffers, the public could choose to fund education in a manner that each individual sees fit. However, the common argument (and legitimate concern) is that poor people would be left out. Poor parents who don't have the money to send their kids to school, let alone GOOD school, are left raising uneducated kids who then end up poor. The idea that charity would solve this problem is not entirely unreasonable, but it seems to be a cop out.
This is where I think the Khan Academy has the potential to have a major impact. With individual teachers teaching small classes, you're required to have many hundreds of thousands of teachers across the country, leading to an extremely high production cost for education. If instead you have groups like the Khan Academy producing educational materials that are easy to consume, available across a huge breadth and depth of topics and easy to distribute, the production costs for education go way down.
The reason that poor people can't afford private school is because private schools are expensive. Using technology allows organizations like the Khan Academy to produce high quality education at a fraction of the cost. I'd love to see private schools set up to take advantage of this material and educate the public without government involvement and its requisite politician silliness.
The other thing that people tend to have a hard time imagining as their independence has been slowly-but-surely squeezed out of them is that this does not have to mean that the only other schooling option is a kid alone in front of their tablet watching Khan's videos at home. Khan's videos are a tool that can be applied in many ways. Five families can band together to trade off on who is watching what on what days and share questions and answers, or a day care organization can use it to bootstrap themselves into an affordable private school. Online companies can bootstrap into having banks of problems, using that as the content. And of course it doesn't just have to be Khan doing this, anybody can.
This doesn't just enable one thing, this and all the things that will happen enable an amazing multiplicity of ways to approach the problem of teaching. (And I started to say "teaching children" but even that is being too specific.)
(This is just one example, there's a lot of others. Too often people think the choice is "government run service" or "people scrabbling for scraps in the street as the wolves howl in the distance", but that's not how it works. Government-run services may not always be a bad idea but they do have a strong tendency to freeze in The One True Approach for decades after they are no longer optimal. 19th-century-style schooling's days are numbered, no matter how much the unions protest in the early 21st.)
You assume that the primary role of the regular schools is to educate children, it may very well be that the primary role is to keep children busy so parents have time to work. Even if teaching as a role is replaced, there is still a cost for monitoring children while parents are working.
Interesting but what about poor people who cannot afford good quality education.
A better way I think would be for people to keep paying what they do in taxes for education but then giving them vouchers for that amount that they could spend at any school.
Socially fair as well as building a competitive marketplace for schooling
Being that Khan Academy isn't necessarily a complete learning experience/solution on its own makes this difficult. The most important one: Having a mentor or guide to assist when a student runs into problems or doesn't understand or is misunderstanding.
And why not sell our national parks and community parks to say Disney and Chuck E Cheese? Imagine! We could pay whenever we want to take a slide or go for a hike!
Simple access to well indexed/searchable information through the internet was a very positive and disruptive change to education, but didn't really change the way education was delivered. I think education-on-demand and open textbooks are fundamentally going to change how people learn.
It seems that the world would only need a handful of teachers to provide all the basic (and I mean basic) education anyone ever needs. Then we could all concentrate on developing our personal potential, individual talents and performing to the very high levels most of us would be capable of if we could only have enough time. They say it takes 8,000 hours of anything to become an expert. That's never going to happen in a modern school with a curriculum crammed full of obsolete knowledge and subjects. but if we had more experts around who had more time to teach children, the sky's the limit.
While I agree with your premise, there are times you have a question or the teacher's explanation just doesn't click for you. Sometimes you need to be able to have 1:1 learning, however I'm sure there are a number of solutions to this problem.
I would think that it should not be too long before Khan like education is available for every topic sometime in the next 100 years. Once these topics are available, I see distributing these videos to every child in replacement of national school. It's probably overly optimistic to think this could happen without having politicians infecting their ideology into the material but whatever, it's a dream. I would love to join an organization interested in doing just this if there was one.
I'm a big fan of Salman Khan and his videos, but I think what he does can be done better.
He is a great teacher, and his ideas of watching lectures for homework and actually working with teachers in class is great.
But, he cannot teach everything. The world is full of fantastic teachers, but ultimately only the students can recognize who they are. I have recently launched a simple online platform, organized like a textbook, for the Salman Khan's of the world to contribute any form of instruction for a given subject or to ask questions and give answers, ranging in form from Youtube videos to hand-drawn diagrams, where the community will rate what is good and what is not. This will filter the mediocre content, and eventually, only the highest-quality submissions will remain. As an incentive, I have pledged to give every penny earned via advertising through June to the top 10 highest rated submissions. I am currently testing the idea with Calculus 1, Physics 1, Linear Algebra, and Classical Mechanics. I am young, stupid, naive, and have limited web design skills, and I could really use any kind of help or input with this, particularly in forming curricula. It is still a work in progress (in every aspect), and you can see it at ForgetTheTextbook.com
I never heard about the Khan Academy but as of today I am a fan! I have always wondered how we can make advancements on education using technology and especially love the "learn at your own pace" and what you want to learn.
I think this is a fantastic concept and looking forward to the involvement of it
While the Khan Academy is a great resource for teachers, parents, and self-motivated students, the idea that it is a revolutionary replacement for schools is a pipe dream. The 'Academy' boils down to a bunch of admittedly well-done videos and a chatroom. And I'll bet the vast majority of children who use it are motivated by the desire to do better in their 'real' school. Kids don't know what they don't know, and simply piling a bunch of videos in front of them with no guidance is hardly a substitute for our public (or private) school system. I think what Khan is doing is great, but it's essentially just a well-executed set of study aids.
Khan academy is a huge step forward, delivering key concepts in video forms. However, this approach only goes so far. Human interaction becomes important when higher-level concepts are introduced. For example, I can't imagine getting through my O.S course without the help of TAs, office hours, etc. Recreating that experience on-demand would be the holy grail.
This has been a thought running through my mind for a while. The Khan Academy is fantastic! I've had a few great teachers/professors in my time, but I still think of him as the best. I would love to see Rosetta Stone style software mixed with his lessons.
Personally I was really interested in pursuing opportunities in educational software a while ago (If changing the world is your goal as an entrepreneur education is a pretty low hanging fruit) So I went to one of my old teachers. She has won several awards over the years, and is the kind of person open to new ideas. I decided to spend a few hours with her to learn how school has changed, and how we can use technology to make learning better. Going into the conversation I had the idea of a social network for students/teachers. However while talking I soon learned that what she really wants, and what would really help is more data. Students take various assessments, but the tests are fairly infrequent. In the time between assessments things change for each child, but the progress of the lesson may not proceed in proportion. It was at this point I changed my way of thinking. I don't think the most efficient education is had by retrofitting new technologies into the classic classroom. Instead like Khan described, the role of the teacher could be shifted to software that guides a student through learning while tracking their progress, repeating concepts as needed or advancing difficulty in a very dynamic manner. The teacher can than transition into a role as a guide, perhaps helping students learn more offline, helping students find answers to questions etc.
That's exactly what needs to happen. The teacher as a knowledge spout doesn't make sense anymore in most places since we can get the knowledge from 100 other sources faster and probably better.
In addition and regards to your assessment point -- I agree assessments still need to happen, and perhaps even more regularly than now, but there needs to be a shift in the mindset around the purpose of the assessment. It's common to think of assessments as the primary method of getting "grade/mark points" and that's it, however the most beneficial part of assessing are the learning aspects.
Assessments:
1. Give the student a chance to use the knowledge they now have and strengthen it as a result,
2. Figure out where the student is for the benefit of the "teacher"/"guide" to better guide the student in further learning and,
3. Help the student figure out where they are themselves and where they're struggling and doing well.
And hopefully burdened with less administrative tasks and armed with more data that tracks progress and speed of learning, teachers can act more as a curator of knowledge (and guides, as you described) that cater more specifically to the needs of each student. It could very well be that in a few years, our children are bombarded with more educational content that they know what to do with, and the roles of the teachers will also rightfully shift.
[+] [-] patio11|15 years ago|reply
I'm a big fan of that transition taking place, which may involve taking 100 units of work currently done by teachers (i.e. people who are, aspirationally, highly skilled and highly educated) and replacing it with 40 units of work done by teacher's aides (semi-skilled labor like, ahem, many teachers in the status quo), 40 units of work done by teachers (close to the ideal of today's teachers), and N units of work done by a handful of curriculum experts whose amortized cost per class taught is rounding error next to the teacher's salary.
I mean, last year BCC essentially added twenty full time teachers to the US just by preventing people with masters degrees from preparing for class by cutting construction paper with scissors and then writing on the construction paper with markers for more than an hour at a time. That's hideously inefficient use of resources... and there are still hundreds of thousands of teachers who do it the bad way.
[+] [-] T-hawk|15 years ago|reply
I love the description and love your HN contributions as much as anyone, but that sounds just a wee bit inflated. I would think BCC purchasers more likely to use the hours saved as leisure rather than as additional professionally productive time. You also dismiss the possibility of these teachers finding another satisfactory program in BCC's hypothetical absence.
(Unless you've already factored out those factors before you arrive at the "20 full time" figure. Then please ignore me.)
[+] [-] unknown|15 years ago|reply
[deleted]
[+] [-] fourspace|15 years ago|reply
If society wants public school, that is a school that is administered and funded by the government, then by definition you are choosing to have teachers' salaries decided by politicians and bureaucrats. In order to change salaries, legislation is required. In order to enact legislation, you have to form special interest groups (in this case unions) to represent large swaths of voters, as politicians only listen to votes.
Instead, consider the idea of eliminating public school. With all of the money back in the public's pockets instead of in government coffers, the public could choose to fund education in a manner that each individual sees fit. However, the common argument (and legitimate concern) is that poor people would be left out. Poor parents who don't have the money to send their kids to school, let alone GOOD school, are left raising uneducated kids who then end up poor. The idea that charity would solve this problem is not entirely unreasonable, but it seems to be a cop out.
This is where I think the Khan Academy has the potential to have a major impact. With individual teachers teaching small classes, you're required to have many hundreds of thousands of teachers across the country, leading to an extremely high production cost for education. If instead you have groups like the Khan Academy producing educational materials that are easy to consume, available across a huge breadth and depth of topics and easy to distribute, the production costs for education go way down.
The reason that poor people can't afford private school is because private schools are expensive. Using technology allows organizations like the Khan Academy to produce high quality education at a fraction of the cost. I'd love to see private schools set up to take advantage of this material and educate the public without government involvement and its requisite politician silliness.
[+] [-] jerf|15 years ago|reply
This doesn't just enable one thing, this and all the things that will happen enable an amazing multiplicity of ways to approach the problem of teaching. (And I started to say "teaching children" but even that is being too specific.)
(This is just one example, there's a lot of others. Too often people think the choice is "government run service" or "people scrabbling for scraps in the street as the wolves howl in the distance", but that's not how it works. Government-run services may not always be a bad idea but they do have a strong tendency to freeze in The One True Approach for decades after they are no longer optimal. 19th-century-style schooling's days are numbered, no matter how much the unions protest in the early 21st.)
[+] [-] vl|15 years ago|reply
[+] [-] trafficlight|15 years ago|reply
They, too, will fight tooth and nail to prevent something like the Khan Academy's widespread use in public institutions.
[+] [-] jayzee|15 years ago|reply
A better way I think would be for people to keep paying what they do in taxes for education but then giving them vouchers for that amount that they could spend at any school.
Socially fair as well as building a competitive marketplace for schooling
[+] [-] aik|15 years ago|reply
[+] [-] lotusleaf1987|15 years ago|reply
[+] [-] unknown|15 years ago|reply
[deleted]
[+] [-] unknown|15 years ago|reply
[deleted]
[+] [-] unknown|15 years ago|reply
[deleted]
[+] [-] dreamux|15 years ago|reply
[+] [-] sarahmccrum|15 years ago|reply
[+] [-] lotusleaf1987|15 years ago|reply
[+] [-] TGJ|15 years ago|reply
[+] [-] gcheong|15 years ago|reply
http://www.bidoun.org/magazine/23-squares/the-math-of-khan-b...
[+] [-] Miserlou57|15 years ago|reply
He is a great teacher, and his ideas of watching lectures for homework and actually working with teachers in class is great.
But, he cannot teach everything. The world is full of fantastic teachers, but ultimately only the students can recognize who they are. I have recently launched a simple online platform, organized like a textbook, for the Salman Khan's of the world to contribute any form of instruction for a given subject or to ask questions and give answers, ranging in form from Youtube videos to hand-drawn diagrams, where the community will rate what is good and what is not. This will filter the mediocre content, and eventually, only the highest-quality submissions will remain. As an incentive, I have pledged to give every penny earned via advertising through June to the top 10 highest rated submissions. I am currently testing the idea with Calculus 1, Physics 1, Linear Algebra, and Classical Mechanics. I am young, stupid, naive, and have limited web design skills, and I could really use any kind of help or input with this, particularly in forming curricula. It is still a work in progress (in every aspect), and you can see it at ForgetTheTextbook.com
[+] [-] wrkonce|15 years ago|reply
[+] [-] vannevar|15 years ago|reply
[+] [-] ericxtang|15 years ago|reply
[+] [-] clu3|15 years ago|reply
[+] [-] joshstaiger|15 years ago|reply
But apparently he's upgraded to something called SmoothDraw3 and a Wacom Bamboo Tablet.
http://www.khanacademy.org/about/faq#equipment
[+] [-] gcheong|15 years ago|reply
[+] [-] clistctrl|15 years ago|reply
Personally I was really interested in pursuing opportunities in educational software a while ago (If changing the world is your goal as an entrepreneur education is a pretty low hanging fruit) So I went to one of my old teachers. She has won several awards over the years, and is the kind of person open to new ideas. I decided to spend a few hours with her to learn how school has changed, and how we can use technology to make learning better. Going into the conversation I had the idea of a social network for students/teachers. However while talking I soon learned that what she really wants, and what would really help is more data. Students take various assessments, but the tests are fairly infrequent. In the time between assessments things change for each child, but the progress of the lesson may not proceed in proportion. It was at this point I changed my way of thinking. I don't think the most efficient education is had by retrofitting new technologies into the classic classroom. Instead like Khan described, the role of the teacher could be shifted to software that guides a student through learning while tracking their progress, repeating concepts as needed or advancing difficulty in a very dynamic manner. The teacher can than transition into a role as a guide, perhaps helping students learn more offline, helping students find answers to questions etc.
[+] [-] aik|15 years ago|reply
In addition and regards to your assessment point -- I agree assessments still need to happen, and perhaps even more regularly than now, but there needs to be a shift in the mindset around the purpose of the assessment. It's common to think of assessments as the primary method of getting "grade/mark points" and that's it, however the most beneficial part of assessing are the learning aspects.
Assessments:
1. Give the student a chance to use the knowledge they now have and strengthen it as a result,
2. Figure out where the student is for the benefit of the "teacher"/"guide" to better guide the student in further learning and,
3. Help the student figure out where they are themselves and where they're struggling and doing well.
[+] [-] danac|15 years ago|reply
[+] [-] c00p3r|15 years ago|reply
[deleted]