November 28, 2011
I’m ending this series of posts on hexagon-flexagon with images of work done by students in Michele Gannon’s art classes in the Adirondacks. I taught the students how to do the paper-folding. Michelle’s considerable artistic influence supported the students’ creative output. Each of images that I am showcasing here is followed by the same image in different configuration on the same structure. Notice how the patterns change.
This lovely design was created with Prismacolor pencils. Some, but not all, of the Prismacolors show up well on black paper.
This next set shows a really simple design that works really well, as the look of it changes dramatically when the image is flexed.
Since each hexagon-flexagon has three distinct surfaces to design and decorate I brought in a variety of novel tools to help motivate the students to keep working. In the photos below the students used my Chinese Dragon paper punch. Paper punches are a great motivational tool, and the dragon is the most popular of all that I have.
By the way, the students that made these images were about eleven years old.
I like the way the relationship between the dragons changes when the flexagon flexes.
Another tool that makes a big hit with students is Crayon Gel Markers. These markers take about 15 seconds to fully show up on the paper, thus adding a bit a magic to the process of decorating.
I also use some of the Crayon colored pencils. Only some of them work well on black paper. I used to be able to find Crayona FX (?) pencils that worked on black paper, but I haven’t seen them around for awhile.
I have to say that that only reason that I felt comfortable teaching this structure to these students is that I knew I would be working with small groups. I don’t think that I had more than 10 or 12 students in each class. The fact is, the folding for this structure is so specific, that I doubt I could successfully teach it to large classes. But I think it would be a great project to teach to home schoolers, or in an after school art class.
The hexagon below has a completely different look when it’s flexed.
The middle circle totally changes, and that white line becomes a whole different thing, too.
These were so much fun to teach. It’s a real pleasure to watch the expressions on the students’ faces when they see their own design be transformed when the hexagon flexes. That’ s my favorite part of the process, too.
November 23, 2011
After posting about Hexagaon-Flexagons on November 10 and November 16, I started working on making a template for teaching this tricky paper invention. Even though this structure is well covered on the net, what I want to add to the mix is something to make the folding easier.
When I’ve taught this structure the part that people have the hardest time with is creating precise folds. I made the instruction sheet above because it provides a way to create score lines so that the folding is easier.
Scoring is PRESSING lines onto paper, so to help facilitate folding. If a score line is firmly pressed into paper, it will fold easily on the score line. A pen that has no ink in it, or a paper clip, both make good scoring tools, as they will make a thin line. Bookbinders use bonefolders for scoring, but for this template I prefer a paper clip because it makes a thinner score line.
Here’s a picture of my daughter’s hand scoring my template. The template is on a firm but not hard surface: the surface ideally should have a bit of ‘give” so that it can be pressed into. (A stack of newspapers or a catalogue works well.) Place the ruler on the indicated line, holding it securing in place, then run the edge of the paper clip along the edge of the ruler. Press firmly, but not too hard, as you don’t want to rip through the paper. If you look closely at the image above you can see the the score lines that have already been pressed into the paper.
That’s about all I have to say for now. Hopefully the instruction sheet above clear enough to follow. If you want to print out template without the instructions, this is the a link to my non-annotated hexagon-flexagon .
And for some more inspiration, here’s a hexagon-flexagon decorated by Michele Gannon:
Now, here it is again, flexing….
….to next reveal the design that was formerly tucked inside:
addendum: Here are a couple of links to another person’s take on the hexagon-flexagon: http://plbrown.blogspot.com/2011/03/amazing-trihexaflexagon.html and http://plbrown.blogspot.com/2011/12/art-math-magic-its-trihexaflexagon.html
November 16, 2011
Except for the last picture, all of the images in this post exist on one hexagon-flexagon. In my last post I showed hexagon-flexagons that were about making designs with pencil, paper, and gouache. When I was making the design for this post I was thinking more about math.
Okay, now here I go,showcasing my hexagon-flexagon as way to illustrate fractions, rather than to be a kaleidoscopic toy.
The hexagon-flexagon above has been illustrated to be understood as thirds,showing that three thirds create a whole.
Now, this concept might be better understood if the parts were actually labeled.
I worried that labeling the parts could cause a problem, because, after flexing the structure, the design changes. I did a mock up to see what would happen, and this is what I got:
Not bad. I like this way of working with the hexagon-flexagon.
One thing is really clear to me, and that is that I would love to work with a graphic designer who would add words and numbers that looks snazzier than my handwriting. Oh, and another thing that is clear is that labeling the hexagon as two halves doesn’t work well after it’s been flexed. (I’m not providing a picture here of how the broken up halves looks).
This side of the hexagon-flexagon shows that six parts equal a whole. Ideally, I would label each of the blue triangles with their own “1/6′ fraction, then write equations all around the outside edges (such as 1/6 + 1/6 = 2/6 =1/3)
I think that this is going to be a long-term project, perfecting these images with better text graphics. I like how the geometric patterns work out here. It’s just the labeling that I can’t get right.
So, everyone has heard students question why they have to learn math, particularly algebra and trig, as they don’t foresee ever using it. I have at least one good answer to that age-old question. The reason to master math is that it keeps a person’s options open. I recently spoke to the someone who was helping her 30ish-year single parent daughter with Algebra because it is required for a nursing degree. Today I spoke a woman who has gone back to school to get a degree is Public Health. She is struggling with her required economics course. My son needs a to complete two semesters of Calculus towards his Biology degree, which will qualify him to go on to Chiropractic studies. So, there you have it: learning math a keeps options open for the future.
Now here’s another way of decorating a hexagon-flexagon, and hey, it’s even seasonally correct, as it can easily pass for a six-sided snowflake.
Math and art together: always a great idea.
November 10, 2011
My mind has been on math lately: my daughter and son are taking math classes (geometry and pre-calc) which they have found to be challenging. This has gotten me thinking about math. Math can get me thinking about flexagons.
Wikipedia aptly defines flexagons as “flat models, usually constructed by folding strips of paper, that can be flexed or folded in certain ways to reveal faces besides the two that were originally on the back and front.” Flexagons were first created in 1939 by Arthur H. Stone, a 23-year-old graduate student from England, in residence at Princeton University on a mathematics fellowship. Since flexagons can be described in terms of the polygons they are created from, and since creating them requires mathmatical-like precision, these folding structures, as a group are often thought of in mathmatical terms. However, the playful surprises that they reveal create a lovely bridge to the arts.
In preparing this post, I looked around the web to see other people have written. Whew. There are a huge number of sites that feature all sorts of flexagons. My favorite so far is http://britton.disted.camosun.bc.ca/trihexaflexagon/flexagon.html . I like this one because the it has it all: a video of a hexagon-flexagon in action, clear how-to instructions, and a template with compelling graphics.
(Update: here’s the link to my post and handout on How to Make a Hexagon-Flexagon)
There is so much on the web already about flexagons, but, still, I want to write some posts about this structure as I have seen very little on the web that shows hand decorated flexagons or that displays this structure in playful postures.
BTW, Hexagon-flexagons are, in my opinion, the perfect thing to give as a gift to math teachers. This year there are a couple of math teachers who deserve my gratitude, so I made a couple of these structures.
Since I was making some of these structures already, I thought I’d make a few more. I used the same design on each one, which was great because I was able to take one photo that shows all six design configurations that are contained on one hexagon- flexagon.
Writing about this gives me a great excuse to mention my all time favorite book on paper-folding. I know nothing about the author Eric Kenneway, though I think he might have hailed from Australia (Bronwyn, are you familiar with him?). His book, Complete Origami, is a resource I refer to over and over again. I think of it as my magic paper-folding book, because, no matter how often I look at it, I am always finding something that I had not seen before. It’s like it presents ideas to me only after I am ready to see them.
Here’s a peek at the inside of this book:
As I like presenting directions on standard size copy paper, I will be working on a hexagon-flexagon instruction sheet to post in the next couple of days. Also, since there are many reference to hexagon- flexagons as being a mathmatical structure, I hope to post a hexagon-flexagon design that is straight forward and deliberate in graphically asserting a math connection.
For now, though, colorful and playful is all that have to show.
Addendum: here’s my post on How to Make a Hexagon Flexagon