My fear of math

School Counselor and Math Anxiety: Definition of Math Anxiety
Credit: I don’t know where this image is from, but i found it online here: https://schoolcounselingandmathanxiety.blogspot.com/2013/01/definition-of-math-anxiety.html

I wasn’t great in maths during my institutional education period. I never connected with maths, until I started realizing it as a useful tool during my doctoral research work. But still the connection was weak, I did only that amount of work on math as much was absolutely necessary. I used numerical methods because it was a tool that helped me process my experimental test bench data during my PhD. I had no attachment to the tool. I experienced fear.

Fast forward to today. I am a part-time math teacher and hoping I am not too bad at it (fingers crossed). I am hoping I also improve my skills. But the pertaining challenge is – I am afraid of maths. In the introductory class on calculus which I am teaching to undergrads, we talked a bit about the experience of math with the students. And almost everyone expressed their fear of maths. And as i realize more and more, almost everyone around says they fear math. Many have expressed that they didn’t take up studying sciences because of the requirement of maths to be studied along with. In a course on ecology in which I am participating as a student, whenever the teacher throws in some mathematical formulations, I can sense my fellow participants taking a back step, or looking at each other with sad eyes and pathological fear. I would have done that too, had I not had some confidence built up in math over the years. Before every math class I go to teach, I experience many hours of anxiety and self-doubt. I prepare my lecture fighting the thought – “Oh shit, I don’t know if I know this shit myself, what will I even explain to my students?”. I fear my students might see through this fear and judge me, or feel similar, and actually suffer, partly due to their own fears of the subject and partly due to a teacher who himself fears the subject. Imagine a classroom full of fear and anxiety, and if this ever happens, how can learning exist in such a situation, ever? So my question is, why this fear of math? I wonder how many of our teachers of math are also suffering from this alleged fear? How many students would have dropped engaging with mathematics altogether over such a traumatic fear of numbers and functions and relationships?

If this fear were true across the world, I am sure it must have been addressed and studied before? Yes. There is a nice Wikipedia article titled ‘Mathematical anxiety‘. It talks about this distress and how it affects performance of children and how people have tried to tackle it, contain it by improving the pedagogy. It talks of how it was measured and found to be a significant problem. I am sure following the links and papers mentioned in this Wiki article and elsewhere, one can come up with a more thorough and through understanding of the issue. But let me take a step aside from all the academically sound and proven literature about it, and instead express some of my naive thoughts on this issues.

2 thoughts. The first one being the nature of math seems to be quite different from the natural working of our brains. and secondly, math anxiety may be related to our deeply ingrained lasting fear of exclusion from our social group.

Relationships – our core nature

To discuss the first point, imagine a subject which triggers emotions and sensations within us. Examples could be literature, films, music, dialogs between people or living beings or with inanimate things. Math is not such a subject, normally. To realize such levels of emotional or sensory upsurge while dealing with math is a gift of the very few, who are able to associate sensibilities to mathematical forms. It is at beast an acquired taste. Paul Dirac, if I remember from my physics courses, could and wished for such a deep connection. Checkout “Mathematical Beauty” – an article talking about the aesthetics of mathematical formulae and Dirac’s idea that a physical hypothesis is true if its mathematics is beautiful. However valid such associations may be, it may not be accessible to the most of us. The super abstract nature of mathematics requires significant amounts of dedication, focused and single minded mastery of the subject before aesthetic senses (may) kick in. Such is true for any subject, be it physics, carpentry, literature, or any other. However, it seems the ability to sustain the abstract quest, in order to secure some mastery, but without the aid of emotional or sensory feedback is the key difference in what separates math from other subjects. It is obvious that every subject requires some set of elementary skills so as to connect and engage with. And acquiring these skills takes much time and effort. For math, it seems it takes significantly more time and effort and a certain non-dependence on immediate emotional and sensory returns.

Coming back to our initial experience with mathematics, a lot of people seem to ask the question – why? Why learn surds, complex numbers, algebra, trigonometry and so on? How does this knowledge help me with my current problems and desires, which mostly deal with my abilities/challenges to connect with the world around me? How does math help in me relating to my needs? Answering such questions could probably help build trust and buy some time to help keep a student’s openness to the math. But if we may enquire further, why do we have such a significant desire of dealing with the world via connections in the first place? I know it sounds like a stupid question, but quite revealing for me! I think due to our evolution as physically weak creatures, our social structure and inclusion with our peers seems to be the most fundamental medium to survive. Groups survive better than an individual. We may be intrinsically programmed to have this fear, without conscious thought, so that our body/mind automatically seeks inclusion by approval and valuation from our peers. The deepest insecurity in ourselves is thus the chance that we might be rejected from a group on some mysterious grounds. We also project relationships with non-human beings as well as objects (Gollum’s “My Prescious” could be a reference). Thus, it seems the humanities could be the subjects which deal most directly with our very core human nature, or this obsession with rejection/devaluation of any sort. However, it is unfortunate why humanities is not the dominant popular subject in the modern human world. I wonder why?

Abstraction – the killer idea

When we began to find and develop tools, we also naturally associated relationships with those tools. We do it even now, I think, all the time! My car, my home, my keys, my computer, my cellphone, etc. However, when our ancestors began making more sophisticated tools from rocks and wood and fire, they probably realized, as we do now, emotional attachments are not helping in making better tools. The quest for a better tool essentially requires a letting go of formed relationships, even if they are powerful and deeply of value. Modern science has taken this ‘abstraction’ to a new high. We have realized our tools to be distant unnamed servants, not friends. Well, for most of the tools. But we still do have our cars and homes and gadgets with overriding ‘relational’ and emotional value to us, even if they don’t serve the utilitarian purposes they once did or promised. The abstraction abilities help us extract simpler utilitarian relationships between objects which have non-human tendencies. Like in physics, if an apple falls from the sky, its not my apple which fell from the sky as ‘gods’ would have wished for, it is a phenomenon that seems to occur millions and millions of times every day, irrespective of who observes it or triggers it. Such an act of removing the human being from the scene has helped blast out the powers of scientific thought from the confines of human emotional/relational chains. We now do a lot of science where a significant amount of time is invested to remove the artifacts of the experimenter or the biases of the theorist from the work. When we do a survey we try to remove the biases of the surveyor’s nature and character from the work, so that it may be replicated across the world. Even in the humanities this phenomenon can be observed, for example in the modern method of historiography where historians study multiple accounts of the same era/events to remove the biases of the individual history chroniclers, thus leading to a more ‘factual’ understanding of the world. Replication, yes that’s the amazing power of abstraction. Once a complex situation is simplified enough by abstraction, a simple model of the phenomenon is formed, which is called a pattern. The idea of this pattern is perfected, and now such patterns in nature could be observed, and predicted. We can also modify some key parameters to influence the very nature of the pattern and as a consequence form newer patterns!

The language of abstraction is math. Math has become the most powerful tool in the hands of scientists, economists, planners, industries, etc. Expressing things in mathematical form is the basis of our industrial world today, of human behavior today. Money is directly math, and it matters like blood would to a body. Math is just everywhere and directly linked to survival, even if most of us would not like to practice math. The outcomes of math are too utilitarian and loud than its intrinsic aesthetic value and beauty. The tool has become the tool of the masters, but it also has a heart and beauty which is drowned by the pressure to learn and use the tools in this practical world. What we teach in school about math seems to give out a confused message to the kids, are we teaching math as a tool of survival or are we teaching how to appreciate the beauty of abstraction? In fact what is education by itself, should be reconsidered deeply. Is it a tool to learn about and value life and relationships around us or is it so that we serve as mere pawns in the practical world of large organizations (including the idea of nations)?

Not being able to abstract well is now judged as not being intelligent, or versatile. The central theme of school and education and social life is – Are you intelligent enough that one must include you in the group? We fear this and everyone knows, but no one acknowledges. Isn’t it an irony that while we humans dominate the world in numbers and we have more peers around us than ever, and yet we feel so scared of rejection? And ‘intelligence’ has been narrowed down to the ability to live and talk and walk in this artificial disabled state of abstraction, unconnected to the people and places around us, unconnected to the self that is full of relationship seeking and sensory activities. It seems to me that abstraction, despite its value in increasing the scales of human collaboration and civilization, it kills the need for a heart and the need to form emotional connects. Therefore, I believe that such a habit of unchecked abstraction may also be responsible for deteriorating the planet, while allowing a fraction of the human population to experience the adrenaline rush which comes from technology driven change.

Conclusion

Given these challenges, naturally why should one participate in a subject that is so removed from reality, and within which so easy to be judged as inadequate? Why risk social connections and value when it is already too much to handle anyways? Some people don’t mind being a recluse or away from the mainstream, for various reasons. We are called ‘nerds’. We like to spend more time with non-human subjects than in the overwhelming world of relationships, which feels like an alien planet altogether. An interesting example is Sheldon from the Big Bang Theory. It wont be too wrong if I say the modern world of science and technology has been designed and built by nerds, and thus is the modern meaning of intelligence fashioned upon qualities that promote abstract thinking. The destruction and inhuman nature of the world is also in front of us, probably brought to us by the same disconnected thinking that we consider as intelligence today.

Given this realization, I wish to convey to myself and my students that its OK to not ‘get’ math. It’s a great subject, and one can love it and see through it a glimpse of the vast universe, and even dare to comprehend an infinitesimally small fraction of it. But to not get it in everyday of our lives is perfectly alright. Some people connect to the world better in abstract forms, whereas some need relational, emotional and sensory connect. The common truth is – we all hold the same desire of connecting, just the paths may be different. The math and physics and the sciences are just one of the many ways to connect to this mystery that we call the universe. If we are unburdened about paths in general, then maybe we will be kinder to those who travel different paths.

What is the lowest cost educational computer that can be assembled?

The COVID19 crisis and the ensuing lockdown and physical proximity aspects have closed down primary modes of education which involved kids going to a class room and a teacher leading them on to learning. After the lockdown, privileged communities had not much of a problem shifting to digital technologies simply because of a history of access. This however created a huge divide, because a majority of learning population in India are underprivileged. We have already lost a lot of time in coming to here that we think about access to technology for the underprivilaged, but lets see what we can do from here on.

Thanks to the conversations with the Door Step School, a school-on-wheels NGO that has been doing pioneering work among the slums and low-income housing settlements in Mumbai and Pune, the obvious struck me, we need computers! Low cost and quick. Here are the options we have in front of us:

  • Rescue old computers from companies and homes and remake them with adequate low-resources friendly software based on opensource Linux platforms and pass them off to the NGO. Although Pune is one of the IT hubs of india, a message of this kind on LinkedIn didn’t get much response so far. Maybe because i suck at communication or maybe people i know in my network are not really into IT or that people are frugal and only using what they have so there’s no computer to spare.
  • A smartphone could be used as a very powerful computer. However, it has the advantages and limitations:
    • Advantages:
      • A very powerful computer!
      • All communiations built in – wifi, bluetooth, 4g, etc.
      • Has mic, speaker, camera – all inbuilt – for any kind of online classes.
      • Could be used as a standalone educational device without any external devices. This is the way privileged students currently use as a primary mode of study i guess (no ref here, its an assumption from my student’s pool).
    • Disadvantages:
      • Costly – A decent one could start from 8k onwards. But if using parent’s ones, the amount of time a parent would lend her/his device will be questionable because the parent might need it themselves.
      • Small screen. But that can be augmented by using Chromecast (1st generation for about 700 Rs) or Miracast or AnyCast devices and connected to a HDMI friendly TV or monitor.
      • Lack of keyboard mouse – This can be solved by using bluetooth keyboard and mouse (~1.4k Rs.)
      • Lack of access ports for USB pendrives and such – One can buy some cheap connected of the market.
      • High distractability – A mobile device is usually plugged into various communication services – calls, sms, social media and so on. This makes this device not so much suited for focus requiring educational work, unless a very high level of self discipline is acquired.
  • A dedicated computer using modern low-cost microcomputers such as the Raspberry Pi.

This last option seems very interesting. Looking at availability and cost, the following configuration works fine for me.

ComponentsCost (INR)
Raspberry Pi 3B + case + fan3000
16GB memory card350
Keyboard + mouse (wired)450
Raspberry Pi power supply500
Speaker500
USB camera650
HDMI cable150
Projector mini with speaker*6000
Total for basic computer11600
*The reason i used a project is that it can displace the stuff on a large screen, especially useful if a large class uses this, like in the case of Door Step School. But the display fof such low cost projectors is not that great. On needs to have it on a white wall, with some amount of dimming of ambient light. Being low resolution, text needs to be zoomed to be able to read and write.

One can go lower than above, by replacing Raspberry Pi 3B with Raspberry Pi Zero W, but then its only 1k of saving. Another avenue is to replace the 6k projector with a 4.5k LCD.

Connect it with any wifi network (from a smartphone) and everything is just like a desktop. Raspberry Pi can be loaded with Raspbian OS, a version of Debian OS systems. This comes with the fantastic LibreOffice system of word writer, spreadsheets, powerpoint equivalents. It also comes preloaded with programming tools and Python is just a marvel to learn on this platform. One can also program in C or Java. It has Wolfram mathematical tools. One can also make a small para-legal community radio with it (50m radius range), without additional cost!

But one of the biggest advantages of this RPi platform is the huge huge community around it that can help you immensely. There are plenty of projects and possibilities of using this small computer for any number of modern applications. IoT, communication, interfacing sensors, etc. I personally use it for my SmallDAC series of low cost industrial/scientific controllers. Interesting to note that Raspberry Pi was developed as an aid to school kids in the UK to become digital age friendly. Maybe we can leverage all this goodness for our cause. Here’s some context.

I am in love with the Raspberry Pi and will be happy to help others make this small computer. Currently, I have assembled this kit and am awaiting to demo it in one of Door Step School’s centers. Lets see how suitable it is, or not.

How i repaired a Pentax SMC Takumar 400/5.6

The main things used were
  1. a lens ring removal tool
  2. a small air blower
  3. simple air wax removal ‘q-tips’
  4. normal hand gloves
  5. 10% hydrogen peroxide
  6. simple nivea cold cream
  7. some lens cleaning paper
  8. some brain and a lens to clean (no particular order)

So here was a cheap (40 euro) lens from ebay posted from Japan. All seemed to be in first class condition except that the lens was infested with fungus and hence so cheap ( i love to play with high tech and undervalued stuff trying to discover their true potential or value)

As seen in the following image, the fungus was too much.

on the inner elements too!

So i opened them up here. its not clear in the image but i wanted to show how fungus looks like.

Since i could not hold the long lens any other way i held it in between my legs. I covered the lens element with a simple kitchen paper folded many times to provide some protection to scratches while opening the lens. Thereafter i used the adjustable ‘lens opener’ (sorry i dont know the right word for this, suggestions welcome)

Here is the first element that comes out. however i could not manage to seperate the element you see from the rest of the conical body by any amount of vegetarian force.

This is how it looks after the first element came of. 

And here is the fungus on the inner element. Pretty scary to many people who talk about fungus ‘eating’ into the lens coating, but for mortals like me, i would say, its ok i can manage with some loss of contrast and brightness if the coating is gone after cleaning the fungus.

More pieces come of. Ask me to explain how to open or specific questions becasue im very lazy to write all stuff i know, now 😉

Here is the important part. Take a q-tip and take some coldcream onto it and spear it on the fungus infested elements. Please remember that do this only on the elements infested with fungus with the sole purpose of removing the fungus. this procedure needs to be preceeded with cleaning with Hydrigen peroxied that KILLs the fungus. Keep the element dipped in hydrigen peroxide as a first step for an hour or so. only then smear the cold creame and then again keep for long long time. i ket it overnight becasue i had no time. The reason you want to do it only to the elements that need to be fungus cleaned is that removing the cream and associated oils is a tough job and may damage the coatings.

To clean, i used first a mild soap wash in the basin while rubbing gently with fingers. be very gentle, as i can gaurantee that the coatings will be affected otherwise. sometimes one can use only alcohol and lens cleaning paper to do the job instead of washing, though i never tried this (i will try next time with another lens). 
Once cleaned, its really difficult to get the cleaning marks off the elements. this step is laborious and i still have to learn how to do it affectively. Putting back was easy thought it took some time to figure out the right positions for alighnment of the focus ring.
in the end, a 40 euro lens was converted atleast into a 100 euro piece if money is all that matters to someone. But for me, it was hell of a joy 🙂

Post Maker Faire Roma 2013

Hello all,

So not much happened after returning from the Faire other than some thinking about the next prototype. The next prototype will be carried on in collaboration with Mr. Luca Stocchi of Italy, a very interesting person i was lucky to have met at the Faire. So the next idea will include the following:

  • brakes
  • better support/attachment of leg to the wheel instead of the current ankle support
  • Thinking about using bicycle shoes and clips instead of the bulky skate shoes.
Here is a video of me getting better through some intermittent practice 🙂

Next prototype ideas?

Hello there!
well i have returned from Maker Faire Rome with many ideas, too many to compile and put up. but slowly things are turning on in my mind!

here’s an interesting site i found:
http://weburbanist.com/2009/03/03/futuristic-strange-concept-bicycles-designs/

and a very very beautiful concept:
http://www.instructables.com/id/Bow-The-Amazing-Bike-Wheel-Bow/

the latter one can be an amazing base for the wheel. So in fact there will be two 20″ wheels, for each leg, however one will be cut and bent to fit inside the othere.. the space between the original sized outer wheel and the modified inner wheel wil be fitted with balls to act as a giant bearing!!! interesting isn’t it?

solves the problems of load distribution (that was causing a lot of friction in prototype 4) and also the jeans getting stuck in the upper parts of the skate(the upper wheel in prototype 4).

should be light weight too i guess?

another interesting and similar concept:
http://www.toxel.com/tech/2010/03/24/skateboard-with-hubless-wheels/

dont know if its a practical idea, yet.

First real testing of Prototype 4

As you can hear the noise, its because the rubber wheels are rubbing on the aluminium frame. Ila had a wonderfully simple solution, just a few drops of oil. The huge amount of friction that allowed the noise to be made and very importantly allowed me to walk, however vanished with the oil. Luckly we took the video before applying the oil cause after it, it was just impossible to stand on and walk with the smoothest ride possible (if i could i mean). So now the picture is clear, its not as easy as it seems from the video. I’ll need to put brakes onto the wheels, to learn atleast.

The team and place!

Well the most important part of this project is the team here:

  • Nicola Calitaux, Technican at TFL, UCLouvain – the real technical and ideation partner for all of the project
  • Ila Gupta , my wife, sounding board and the real support behind this idea and the maker.
  • Others include
    • Julien Vervotte, Technicain at TFL, UCLouvain
    • Benjamin Berger, colleague at the lab, also responsible for some important ideas and discussions
  • and that subir over there 😉

All the work has taken place at the Thermodynamics and Fluid mechanics Laboratory (TFL) at Université catholique de Louvain at Belgium, with the amazing freedom allowed by my supervisor Prof Hervé Jeanmart.