Changing Perspectives
This week I read all three articles. As I read each article, I kept coming to the idea of perspectives. (This idea has been rattling around in my head since watching the Antonsen talk in week one.)
The article I am discussing is c) Doolittle, E. (2018). Off the grid. In Gerofsky, S. (Ed.), Geometries of liberation. Palgrave. https://doi.org/10.1007/978-3-319-72523-9_7
The stated purpose of this article is to “apply stress to the grid concept, in order to discover some of its failures, and then propose alternative geometries better suited to our needs in many domains, including education” (Doolittle, 2018, p. 102).
In talking about the grid Doolittle asks, “How we can reflect reality better in our thinking?” (Doolittle, 2018, p. 102). Our reflection of reality comes from the perspective with which we see reality. How does our reflection change when we change our perspective? Are there perspectives that reflect reality in a more authentic way than the “grid” perspective through which we often unconsciously live our lives? Do we see the grid and its structures as being only beneficial, easy, comfortable, familiar, and giving us a sense of control; or do we also consider the possibility of dangers associated with using the grid?
Doolittle proposes failures of the grid, particularly with regards to roads and maps, giving examples of towns/reserves in which he has lived. He brings in Euclidean geometry as an example of a failure of the grid, its value is limited to “small, uniform regions of space” (p.108), essentially ignoring the power of nature. He discusses alternatives to the rectangular grid which include: the hexagon (consider the bees), Penrose tiling, Amman-Beenker tiling, and Riemannian geometry.
Riemannian geometry gives us another way to consider perspective, taking us outside of the Euclidean geometric idea of grid. Riemannian geometry, Doolittle describes as applying the Copernican Principle that we are not the centre of the universe, to grids. “Accepting all kinds of straight and curved grids as equally valid ways to measure space” (p.111). No grid is better than another, rather we are encouraged to look past the grid to “refocus on the actual underlying geometry of the situation” (Doolittle, p. 111).
Indigenous perspectives are discussed through string figures and the time grids of Indigenous ways of farming. Indigenous perspectives are also brought in as Doolittle describes his approach to the Königsberg Bridges problem. Doolittle asked the question, “what after all this time, haven’t we done that we should have done?” Thus the problem is considered from a different perspective, opening up previously unconsidered possibilities and his answer to this question leads him to a solution.
The following quote, about the grid in relation to agricultural land caused me to stop and consider whether we could apply the same idea to students. “Too often, the specific life, qualities, and character of a particular place become subordinated to the forcefully imposed “evenness” and uniformity of the grid geometry. (Doolittle, p. 104) Are we “forcing” students into grid like conformity that goes against their natural “grain”?
Using a chaotic control analogy, Doolittle brings the discussion back to education. He states, “transformations in the context of education where we have the notion of the teachable moment, in which a few small ‘bursts’ at the appropriate time might accomplish more than months of haranguing… The non-trivial question is how to identify those critical moments, and in which direction to provide the nudge” (p116-117). How does this compare with the control inherent in living within the grid, where we (teachers) are in control, with little space of students?
How does seeing the grid as beneficial or as dangerous change the way we interact with our world?
In describing the path to the source of the river in the Königsberg Bridges problem, Doolittle maintains “the path… would be long and arduous… but it is available to the diligent, the brave, the caring, and the open-minded” (p. 119). It is my hope that as educators, we can be diligent, brave, caring and open-minded.
As I read through the introduction this week, the ideas of roots and connection stood out to me. Maybe it is because I love taking my students into the Delta Watershed and examining the roots of the big trees in the forest. We consider the interconnectedness of the roots, what is happening beneath the soil, the life under the soil, how deep the roots might go in comparison to the height of the tree, the path that the roots take etc… (lots of good mathematics related to roots!). I am drawn to the idea of students understanding the sources and roots of mathematical ideas as well as how this can be explored and discovered by being outside. We explore the fractals that we see everywhere! (Doolittle discussed complexity theory as a superset of fractal geometry.) “What do you notice” and “what do you wonder” questions draw students attention to how mathematics shows itself in the natural world of the forest. How do we move beyond these questions with young students? The land as an entity is a great teacher.
This week I attempted the activity a few times. My drawings… perhaps I will keep those to myself for now, but… as I was exploring the world through mathematical perspectives, I used my camera to capture images that highlighted for me natural lines and angles – forms that would not fit easily with the grid. The complexity of patterns and lines found in nature are unmatched with human-made things. We only come close when we mimic nature.
I have not used a lot of whole body movement in teaching mathematics outside, but I am inspired by the Dancing Euclidean proofs to consider ways to allow students to explore their understanding using their bodies.
Hi Joy,
ReplyDeleteFirst off, I am snooping. :) Your "joy of mathematics" always makes me think of food and I wanted to read what kinds of questions you posed. I love Doolittle and appreciate your summary. I was expecting a more of a dichotomy from Doolittle. I think his question "Are we “forcing” students into grid like conformity that goes against their natural “grain”? is extremely appropriate to pose to educators at all levels as well as parents. I know too many parents who want me to teach like they/I were taught on the grid.
I agree and love your metaphor of roots and interconnectedness, "We consider the interconnectedness of the roots, what is happening beneath the soil, the life under the soil, how deep the roots might go in comparison to the height of the tree, the path that the roots take etc…". Just like math it is all interconnected and based on roots but how we approach the roots is what matters. I do not expect a response because I am snooping just thought I would admit that I am.
Haha! I love that you are snooping and appreciate you sharing your thoughts! It's always good to hear from you. I enjoyed the Doolittle article as well, although I'm not sure I understood it all. There was a lot going on in this article and I found it hard to summarize - trying to get it all in. As I do my reflections, I think next time I will focus less on trying to summarize the article and more on my stops.
ReplyDeleteThe question you referenced above on "forcing" students into grid conformity was a question I posed after reading the article. I think that in many ways education does just that, particularly when talking about assessment (but in the way classes are managed and lots of other ways as well). How much choice do students have to "show what they know," particularly in math assessment. I guess there are grids that assessment fits into and for ease, familiarity and comfort - we continue to use assessments that are less robust and genuine because traditional assessments are easier, we've always done it this way, and they have a 'facade'(is that too strong of a word) of fairness. I do see some movement on trying to change the way assessment is done in schools but it is an uphill battle.
Thanks for snooping around my blog. You are welcome anytime! :)
Yes, it is assessment that is in my opinion on grid and expected from most parents. :)
ReplyDeleteJoy,
ReplyDeleteI love these photos of Lines and Angles.
I find the ones on the pond particularly interesting.
My Comments on Doolittle, E. (2018) Off the Grid.
ReplyDeletePart 1
Joy, I read your post with great interest. As you point out, Doolittle proposes “alternative geometries better suited to our needs in many domains, including education”. Reading his article, I had so many “stops”, and in my comments have tried to organize and present my thoughts the best I could.
I taught grade 10 geometry at an international school for 15 years. Due to our school accreditation, we used an American curriculum and followed the Common Core State Standards for math. Geometry was taught as a separate course. At the end of our unit on spheres, we had an activity that using a world map on a globe students measured and compared distances. For example, the distance for flying between Tokyo and Los Angeles in a straight line vs. a curved path on a great circle. Students would be surprised to find that following the curved route was shorter than the path which appeared straight. At that point in the course students were given a brief introduction to non-Euclidean geometry. Otherwise, the course was completely Euclidean geometry.
Despite such limitations, Euclidean geometry has been used successfully. Carl Sagan in a video narrates how Eratosthenes (c. 230 B.C.), using sticks and shadows and measuring the distance between Alexandria and Cyrene, was able to determine fairly accurately the circumference of the Earth. https://www.youtube.com/watch?v=G8cbIWMv0rI
Earth measurement was not the main thing we studied in geometry. We started with deductive reasoning and logical statements, which is a valuable tool in any field of study. Students would note the importance of statements, such as if ... then, and how they were used to draw conclusions. For example, statements of Newton’s Laws of Motion. Definitions were also very important – not to memorize, but understand biconditional statements and having complete definitions of terms. For example, after providing a good definition of a polygon, students would think how to define a term from biology, for instance a bird.
Doolittle refers to “thoughtless promotion of Euclidean geometry”, but suggests hexagonal pattern and Penrose tiling. Aren’t hexagons and other polygons used in Penrose tiling required topics of study in Euclidean geometry? Although we studied abstract shapes when proving whether or not two triangles are congruent or similar, the big idea is how do we know that. Is it based on a postulate (or axiom) or a theorem that could be proven? That would have applications not only in engineering and architecture, but learning how to use a logical approach to drawing conclusions could be used in any discipline.
Is it trivial to have an understanding of volume, and how it is measured? Whether we talk about the amount of water for human consumption or agriculture, milk requirement for a baby, blood transfusion, or fuel efficiency, the list is endless, we need to have a concept of volume. Is it necessary to introduce the use of Riemannian or alternative geometries for measuring volumes of commodities in everyday use at primary and secondary school levels?
Part 2
ReplyDeleteI think Doolittle has an eloquent and poetic style. However, as his narrative weaves in and out of “failures of grid system”, there is reference to diverse topics, from the use of a rope with knots at 3,4 and 5 for forming a right triangle, tiling, Riemannian geometry, relativity, string theory, fractal geometry, complexity theory, chaotic dynamic systems, Konigsberg Bridges and graph theory, and the Indigenous perspective. While he mentions that right triangles with sides 3-4-5 was known long before Pythagoras, he does not elaborate that Euclid proves the Pythagorean theorem, and some consider the relation as one of the most elegant equations in mathematics.
In high school geometry, we demonstrate Euler’s formula when studying space figures, and the relation between faces, vertices and edges of a polyhedron. Then we apply a variation of Euler’s formula to networks. As stated by Doolittle, the Konigsberg bridges problem led to the development of a branch of mathematics, referred to as graph theory, which has many applications for solving network problems. The Indigenous perspective proposed to show respect to the natural world and make an offering to the river is a wonderful idea, but it won’t solve specific network problems. Environmental stewardship should be an important component of education and citizenship. Perhaps keeping in mind the approach of “the teachable moment” and communicating the big ideas “at the appropriate time” would be more effective.
Doolittle says “The examples we have discussed in this book have convinced me that alternative geometries, geometries of liberation, deserve a major role in the future of mathematics education.” I haven’t had a chance to see the other articles in the book. Of course, curricula need to be evaluated and revised as necessary to incorporate most relevant issues of the time. It is not clear to me whether Doolittle suggests that teaching Euclidean geometry is useless and has no place in schools.
Hi Zaman,
ReplyDeleteThanks for your comments on my post. I’m going to push back a little on some of your thoughts. As I read through your thoughts in part 1, your comments about the use of logic made me wonder…sometimes when we see the logical way, do we become blind to alternative ways? What I mean is, if we’ve found a solution, are we open to the idea that there are other paths to a correct solution? Even with my grade one students, we talk about the need to be able to defend an answer and sometimes there is more than one correct answer. I am not proposing that we don’t use logic or that logic is a bad thing, I just wonder about openness to other possibilities.
When you ask the question, “Is it necessary to introduce the use of Riemannian or alternative geometries for measuring volumes of commodities in everyday use at primary and secondary school levels?” I wonder if an alternate question could be not is it necessary, but is it useful or helpful? It makes me think of the Dancing Euclidean Proofs, not necessary but certainly worthwhile!
You are correct in saying that Doolittle address many topics in this article. My take on the article was not that he is suggesting that Euclidean Geometry is useless and has no place in schools but that he is proposing alternate ways that introduce and include a broader perspective. Perhaps the Indigenous perspective on the Konigsberg bridges problem will not be applicable for solving network problems, but it might open up possibilities and ideas that were not apparent before.
Thanks Joy for your thoughtful post! Zaman, I love your activity of having students measure distances via a straight line vs. a curved path on the world map. That is an excellent example demonstrating a perspective that we don't often teach in schools. I don't think Dr. Doolittle is saying that we must teach non-Euclidean geometry or abandon the grid system completely. Great point about necessary vs. useful/helpful, Joy! In my opinion, the issue is that overemphasis on one perspective in the school curriculum makes little space for alternative ways of thinking. Thanks everyone, for an interesting conversation!
ReplyDeleteJoy, this response is quite delayed, but I'm catching up after my COVID-stint.
ReplyDeleteThanks for your summary of your article! I've often thought about the ins and outs of using grid-based organization systems and I quite like diverting from them.
Most places I've lived have had grid-based maps, in which things are quite easy to understand, but very static. That being said, I spent a summer living in Calgary, which is built in a quadrant system. Most people I talked with about driving in the city commented on how difficult it was to drive there, but my math brain latched onto the quadrant system, and I had a great time looking for new connections as I learned to get myself to and from work.
I also spent a year living in Ireland, and their country roads are VERY twisty! I've heard (but haven't fact-checked) that the reason for the curves is that, when the roads were being created, developers were not permitted to cut across royalty property, so the roads wove along the property lines! This resulted in sharp turns, long detours, and narrow passages. It also made for really fun travelling!
In thinking about these, I wonder how often the things or ways we learn in class are easy to grasp, but leave little to be explored or discovered. There isn't much need to connections to be made between concepts, because everything exists in the way it is presented and there isn't much cross-over. I love the idea of pushing back against this and causing students to consider how deeper connections might be made.
Fiona, great examples here! I like the sense of the roads in Ireland responding to local conditions, whatever these are. It would be interesting to learn more about the history of the quadrant system in Calgary too! I appreciate your getting caught up after dealing with illness -- good for you!
ReplyDelete