Education ∪ Math ∪ Technology

Tag: education (page 5 of 13)

Derek Stolp on “A Mathematician’s Lament”

I recently contacted Derek Stolp, author of Mathematics Miseducation: The Case Against a Tired Tradition and shared with him Paul Lockhart’s essay entitled "A Mathematician’s Lament." With his permission, I’m sharing his thoughts below.

Lockhart’s argument is very compelling, and I certainly share his concerns about the state of mathematics education in this country, if not the world! The traditional approach to teaching mathematics, however, is only part of a much larger problem: the widespread acceptance of the transmission model of learning (as opposed to the constructivist model). Educational practices continue to be dominated by the principle that, if I may state it baldly, children just need to be told what to know and how to think, and this is true to some extent in nearly every academic discipline. (And I believe that this authoritarian model is, in the long run, inimical to the development of democratic values and practices!) I won’t belabor these points here but I do discuss constructivism and the tool metaphor on about pages 50 – 60 in my chapter entitled “Whose Knowledge Is It?”

Despite the power of Lockhart’s argument, I do think he needs to go beyond a lamentation. When I wrote my own book, Mathematics Miseducation, my wife read the opening chapter and said that she found it to be too negative. (As a kindergarten teacher, her preference is for the positive approach.) I told her that, as a math teacher, my habit is to identify the problem and to be certain I understand its contours before trying to solve it. In subsequent sections of the book, I do try to present possible solutions that solve the problem. But the book itself does not provide enough detail for the average teacher to change her/his practice so I decided to set up a web-site with lessons that teachers could use that would be consistent with my approach. I’m not entirely happy with all of the contents of that site – I’ve had to compromise my ideals with the practical reality of the school in which I teach. My 8th graders go on to secondary schools so I have to teach them algebraic fractions and radical expressions in my algebra course, as distasteful as it is to do so. And when they ask me, “Why do we have to learn this?” I try to be honest and say something to the effect, “If it were up to me, I wouldn’t teach these things. Math education is very slow to change, and it’s stuck on 19th century practices. But you’re going on to a school that will require you to learn these things, so I’m trying to get you started in a way that will diminish the pain for you next year.” 

Here’s another example of a compromise I’ve had to make: About 15 years ago, when I was chairman of the math department at Milton Academy in Massachusetts, some of my colleagues and I introduced mathematical modeling courses as alternatives to traditional symbol-manipulating abstract pre-calculus and calculus courses. We taught the same fields of concepts – in trigonometry, for example, modeling studied the rotation of a Ferris wheel and the shifting of tides whereas the traditional course found it more important to develop all those unnecessary trig identities – but at the end of the year, we devoted three weeks to SAT Math Level II review because these kids and their parents, while they loved the course, were not about to sacrifice their standardized test scores.

So here’s my point: Dr. Lockhart has, in his paper, identified the problem very clearly. His next step is to offer an alternative that will remain true to his ideals but that will realistically fit in a more traditional environment. He does suggest a way:

“So how do we teach our students to do mathematics? By choosing engaging and natural problems suitable to their tastes, personalities, and level of experience. By giving them time to make discoveries and formulate conjectures. By helping them to refine their arguments and creating an atmosphere of healthy and vibrant mathematical criticism. By being flexible and open to sudden changes in direction to which their curiosity may lead. In short, by having an honest intellectual relationship with our students and our subject.”

But how could he be more specific for those teachers who are sympathetic to his arguments but need guidance and resources? One way he could do that is to create a web-site with problems he has posed, indicating the levels at which they are appropriate. He’s been teaching high school, I gather, so he must be developing some materials. (I would love to see the day when textbook publishers are out of business because real teachers put their materials on-line for other teachers to access for free.) This, of course, will require considerable compromise on his part, compromise that he might feel destroys his objective. But I see no alternative.

The reality is that our schools are captive to an authoritarian trend to top-down standardization, and neither political party believes in a democratic form of education – Arnie Duncan has merely put old wine in new bottles – because we don’t really have a progressive political party – just a Republican Party and a Republican Lite Party. Progressives in education will have to chip away at the edges a little at a time and that will require distasteful compromises.

I’ve been asked to look at the Upper Elementary (Grades 4 – 6) math program at our school, and I’ve recommended using a program called Everyday Math. While I am not a textbook fan and haven’t used any for more than fifteen years, these teachers are teaching every subject and they need a resource. Here are excerpts from my memo to them:

"I know that it’s normal for every teacher to think about what needs to be accomplished by the end of the year so that his/her students will be ready for the next level and, since the kids are coming up to middle school, I thought I should let you know what skills, habits, and understandings I’d love to see among the incoming children. At http://www.maa.org/devlin/LockhartsLament.pdf is a paper entitled A Mathematician’s Lament which has been expanded into a book. This article was sent to me just this week from a math teacher in Vancouver and, while you’re certainly welcome to read the whole thing, I’d encourage you to read at least the first two or three pages – it will give you a flavor for the author’s point of view and, since I agree with him in principle, mine as well. His goals are lofty if unrealistic in today’s educational context, but they are certainly worth keeping in the back of one’s mind.

So, here are some of the important qualities that I would hope each child would possess coming into the middle school:

– Enjoys doing math
– Feels confident about approaching new problems
– Likes to make conjectures about patterns and is comfortable about being wrong
– Can talk about methods of solution with classmates
– Is resourceful about finding a solution method if he/she had learned it before and has forgotten it.

You’ll notice that there’s nothing here about knowing his/her times tables or knowing how to add fractions. Naturally, I’d love for each child to know these things but, to me, they are secondary. If a child has to take timed quizzes on multiplication facts (mad minutes?) or do pages of drills on adding fractions to master these, then the price is too high because it hampers the development of the qualities that I believe to be more important. So, that’s my bias. In the process of teaching math, we want to expose them to the many concepts and skills in your curriculum but, if they aren’t ready to master some of them, that’s fine – they’ll master them later.

One thing to keep in mind about the program: it’s not important for each and every child to achieve mastery before moving on. Some will, some won’t, and those who won’t will have chances later on to achieve it. And if they don’t by the seventh grade, don’t worry about it – I’ll address it then, and maybe they still won’t achieve mastery. (Several years ago, I had a conversation with a parent at Milton who was also a child psychologist working at MIT’s Department of Brain and Cognitive Sciences and she told me that several of her colleagues used to joke about the fact that they had never been able to learn their times tables. Somehow, these people managed to get by!!) The program has a good balance between skills practice and review on the one hand, and investigations and games, on the other. And I would lean heavily in the direction of investigations and games."

This memo to my colleagues reflects the kinds of compromises that I believe are necessary; the road to progressive education can be walked only one step at a time. Anyway, these are my thoughts regarding Dr. Lockhart’s excellent article, and thanks for allowing me to share them with you.

Derek Stolp

A Mathematician’s Lament – The online book study

Is this mathematics?

Math worksheet 

Join us this coming Thursday, at noon Pacific time, Richard DeMerchant, and I will be hosting an online book study of "A Mathematician’s Lament" which is an absolute must read for all mathematics educators. One of the questions we will try to answer is the one above, and you can ask more questions either on this blog post, or on Richard’s original announcement

‘I don’t see how it’s doing society any good to have its members walking around with vague memories of algebraic formulas and geometric diagrams, and clear memories of hating them.’ (emphasis mine) ~ Paul Lockhart, A Mathematician’s Lament, p33

Paul Lockhart, first in his essay, and then in the extended version of his argument in his book, makes the case that current practices in mathematics education are fundamentally flawed because students spend much time learning the language of mathematics, without ever getting to actually do mathematics. I recommend reading his work in full, even if you are unable to participate in the upcoming book study.

Our plan is to work through his book and discuss the ideas in it, using quotes from the book as ways to kick-start conversation. Here’s my favourite quote from his book. What do you think of it?

‘Everyone knows that something is wrong. The politicians say, “We need higher standards.” The schools say, “We need more money and equipment.” Educators say one thing, and teachers say another. They are all wrong. The only people who understand what is going on are the ones most often blamed and least often heard: the students. They say, “Math class is stupid and boring,” and they are right.’ ~ Paul Lockhart, A Mathematician’s Lament, p21

Gamification of education

Here’s an interesting video which was shared with me by @misterlamb today.

While I’m not thrilled about the use of experience points as group awards (external motivator), I do like the idea of incremental improvement rather than requiring students to make large changes in order to improve. I also get the point that the traditional grading system is poorly designed, and that if we must use some sort of grading system, one that expects improvement through "trying again" is a huge improvement over our "you failed, oh well" system. Further, in a system of levelling up, it would be easier to get away from the notion that how old a student is determines what path they should be taking.

There are some questions I do have about implementation of this kind of system.

  • Would students tend to become specialists in this system rather than generalists? Would they think that because they are doing well in x subject that they can forget about y subject? I’m level 55 in math, but only level 3 in writing, but it’s okay because level 55 is really good! Is this something we should worry about, or just part of the further personalization of education?
     
  • A huge part of any game I’ve played is the competition between the players. Most games are zero sum, in which one player has to do poorly in order for another to do well. Our comparison system of grades is such an example. In order to feel good about your A, there can’t be too many people who get one, hence your gain, is someone else’s loss. In a leveling system, being level 50 feels better when you realize you’ve beaten other people in the race to that stage of the game. I worry that this type of system might foster more competition than it would encourage cooperation. There are some suggestions in the video on how to counteract this, but none of them seems sufficient to me to overcome this effect. How can we encourage greater cooperation in a gamified classroom?
     
  • What do we do with a child who refuses to play the game? We have this problem already in education, where there are lots of kids who don’t participate in the classroom because they can see they will "lose" at the game, or the rules of the school game aren’t interesting to them.
     
  • Should we give points for mastery, or for good learning behaviours? Who hands out the points? How do we ensure that kids don’t find ways to get lots of points without really learning (gaming the gamification system)?

 

I teach kids, not subjects

I listened to a podcast recently where a teacher made the claim that his job is to teach chemistry, not values, and I would argue that if this was really the case, he is failing at his job. If we think of values as being a set of cultural norms, then it is easy to argue that it is impossible to engage in the act of teaching without teaching values.

When we establish classroom rules, we are enforcing our own cultural norms over what is considered appropriate behaviour. For example, if you set the rule that only one person should talk at a time, you are enforcing your cultural norm about respect. If your students come to your classroom without this norm, and you are successful in your indoctrination, when they leave the classroom with the norm, you have taught them a value.

Even if you establish your classroom "rules" democratically, there is still an transfer of values that occurs. First, the value of democracy itself, that it is worthwhile to engage in conversation about things as important as rules, and the rules that are established will likely not reflect the values of an one individual, but rather a blend of the group.

School is filled with hidden values that we pass along to children, as John Taylor Gatto pointed out in his essay, "The Six Lesson School Teacher." Be on time, finish your work, respect each other’s personal space, don’t pick on people, be nice, and many more.

It is impossible to engage in the act of teaching, or even in any communication whatsoever, and not teach values. In every interaction between two or more people, there is an establishment of norms, sometimes explicitly, sometimes implicitly through body language and sometimes through exclusion of people not following your norm.

So when someone says they teach x and not values, I would challenge them and push them to see that this is impossible. We should at least be explicit with each other as educators what our cultural purpose is; the indoctrination of children to our society’s belief system.

The effect of communication tools on education

It should be clear to anyone reading this that the type of tools we have for communication strongly affect how education occurs. If we examine communication tools over time, we can see two trends in our communication tools.

History of communication tools

The first is that our communication tools have evolved from more personal and intimate, to greater mass distribution of information and less personal engagement. When we communicate via body language only, you have to be fairly close to the person, and you need some understanding of who they are for the communication to be successful. At the other end of the extreme, the Internet requires almost no intimacy, no personal connection, and only a modicum of cultural understanding.

Evolution of communication tools

(Graph not to scale)

The purpose of the graph above is to illustrate that the communication tools we have invented tend to allow for both a greater communication speed, and for a greater reach. I can  talk to a few hundred people from on a top of a hill, but I can potentially reach millions of people through a single tweet. The effect of this trend on education is that the flow of information, once painfully slow, is now more like a fire hydrant.

Another interesting trend is the evolution of communication tools in such a way as to promote the more personal, more intimate communication but at a greater distance. For example, tools like Skype allow for a greater degree of interpersonal communication than is possible through sending text messages back and forth. If this trend continues, we will soon be able to communicate in 3d holographic projection to people across the planet, allowing for the subtlety of body language to be included as part of our communication. We will be able to have truly intimate and personal conversations with people who we have never met in person.

Noise

A flaw with the current system of mass communication is that most of the "communication" that is occurring is just noise. There is vastly more information than one can ever possibly digest available through the web, and a huge amount of that information is just garbage. There may be 35 hours of video footage uploaded to Youtube every minute, but how much of it is worth watching? How much of it is family vacation videos?

If the flow of information through the interactive web is like a fire hydrant, then it should be the role of schools to help our students develop tools for filtering that flow.

We must also recognize that if the intimacy of the classroom can be replicated through the Web, that it will be, and that educators will need to adapt to this change. Already schools have seen their traditional classroom students start the migration toward online learning. While I still think that services like the Khan Academy and MIT’s Open Courseware are poor substitutes for the intimate classroom experience, I do not think we are far away from the kind of technological changes which will place a huge strain on the typical didactic classroom model.

I think we need to ensure that the importance of personal and intimate communication, which has always been important to us as a species, is not lost during this transition. While our communication tools may change how and where we connect with our students, we must remember that our value as educators lies not in what we know, but in the relationships we form with our students.

Here is my presentation from the Digital Learning conference in April.

Most livable city

We had Daanish Ali, the producer of the video below, come to our school and share his film with us (embedded below). I strongly recommend that if you live in an urban centre, you should watch this video. While it talks about water issues in the downtown East Side of Vancouver, I’m sure that similar issues exist in every major city in the world.

It is a great starting place for a discussion about urban water use, and very accessible for your students. Our kids finished watching the video and had some great questions.

Most Livable City from Pull Focus Films on Vimeo.

How to build an apathetic student body

Here are some of the ways you can ensure your student body is apathetic.

  1. Ignore student voices in important decisions in your schools.
  2. Put up work on the walls students have done for teachers instead of student messages.
  3. Ask for input from students, but make the process nearly impossible or highly exclusive.
  4. Decide that some students have a voice (perhaps because they have a good GPA) but that others don’t.
  5. Blame the students (or their parents) when they are having difficulty learning your course material.
  6. Require students to learn stuff about which they have either no, or limited, choices.

If you watch the video below from TEDxToronto, you’ll see that these very practices are at play in our political spectrum as well.

People change (ps. kids are people)

People change.

Change

(image credit: dhammza)

I’m not talking about the obvious physical characteristics that change about people, but their inner thoughts and feelings, the cognitive abilities that make them sentient. No one is exactly the same their whole lives as no one is immune to the effect of gaining experience and wisdom from life’s experiences. It has been shown time and time again that the assumption that people are static and unchanging is false. People often change in dramatic and unexpected ways.

I have two students this year who have made leaps and bounds in their academic ability, largely because they push themselves much harder this year and generally acting more motivated and energized in class. My colleague at my last school loves to talk about a child who started in 9th grade as one of the least academically able 9th graders and ended up top of his class in Calculus AP by the end of 12th grade.

When I was in public school, I was painfully socially inept and struggled not only to make friends, but even to understand the motivations and social expectations of the people in my life. Now, I’m in an incredibly social profession as a teacher, I’m comfortable presenting to a room full of a hundred people, and I interact with thousands of people in the course of a month. I’ve changed a huge amount.

Not all change is positive growth of course , but we need to recognize that change is not only possible, it is likely. Our educational policies should reflect the ability of people to change.

Is it possible for children in your school to switch tracks? For example, can a child on a less academic path switch to a more academic path and vice versa? Can students choose to switch courses when their needs change? Can they switch what elective courses they take? Do your discipline policies reflect a student who can change, or do they apply penalties using strict criteria which allow for no opportunity for growth on the part of the student? Do you let students know that they are even capable of change?

Most importantly, what opportunities exist in your school to help kids change their own lives?

What should be on a high school exit exam in mathematics?

Personally, I think an exit exam for school (an exam a student needs to graduate from secondary school) is not necessarily the best way to determine if a student has been prepared by their school. That aside, some of sort of assessment of what a student has learned from their school, whatever form that would take, should satisfy an important criterion; that the student is somewhat prepared for the challenges that life will throw at them.

A typical high school exit exam is testing a student’s preparation for one component of life, specifically college academics. It seems obvious to me that this narrow definition of "preparation" doesn’t actually prepare students for the challenges of life. A student could quite easily pass the NY Regent’s exam in mathematics, any of the IB mathematics exams, their SAT, and any number of other standardized exams, and not know a lick about how to apply the mathematics they are learning in school to solving problems they will encounter in life.

While this shouldn’t be the only goal for mathematics education from K to 12, it seems to me to be a minimal goal, and one which at which we are failing quite dramaticly. Some evidence of this failure is seen by our mostly innumerate public who; lack basic literacy of graphs & statistics, are largely mathphobic, do not understand probability (casinos are good evidence for this), and generally only use relatively simplistic mathematics in their day to day life for problem solving. 

There is nothing inherently wrong with teaching how to do a calculation for it’s own sake, or for sharing some of the beauty and power of mathematics, but it should be framed by the notion that our education of mathematics is intended for a greater purpose. If we only focus on the 4 years people spend in college, we do a disservice to the decades of life they have after college.

Misleading graphs

This graph, taken from Coca Cola’s Water stewardship page, presents a very misleading picture on how effectively Coca Cola has improved their water efficiency.

Misleading Coca Cola graph

This graph for me highlights an important reason that we need to teach critical analysis of graphs and statistics. Do you see the problem with the graph? (Hint: check the scale of the graph).