education

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Open world learning

People often talk of the Internet as a venue for open learning. But this openness often means simply that students can explore a vast array of resources, perhaps coming across sources that neither they nor their teacher expected.

It’s useful to think about the various ways that new information and communication technologies (ICTs) create additional possibilities for open learning, including both its benefits and costs. Several years ago, Umesh Thakkar, Eric Jakobsson, and I along with others developed such an analysis for the case of Biology Workbench (see Molecular Science Student workbench and Swami). The general idea is that Biology Workbench could facilitate open world learning.

Biology Workbench is a suite of computational tools and data sources, which is used by scientists across a wide range of disciplines to explore and analyze protein and nucleic acid sequence databases. There is a wide variety of analysis and modeling tools, within a point and click interface that ensures file format compatibility.

Thus, Biology Workbench is not an alternative tool for teaching biological concepts, although students who work within it can expand their understanding of biology significantly. Rather, it is an exemplar of a venue for learning, one in which students explore genetics, protein structure and function, physics, chemistry, and other domains of inquiry, invoking processes of pattern-matching, probabilistic reasoning, and both inductive and deductive analysis. Its potential significance for learning relates to three major ways in which it is an open system.

Open Data and Problems

The Workbench architecture provides the potential for using information technology to provide an open world of learning and exploration. Previous approaches to using computers in education have focused on the creation of closed worlds in which students could navigate and explore. Many of these computational environments are excellent and useful, but they are limited. Students are not encouraged to investigate the unknown. In general, students cannot investigate phenomena that the creators of the environment themselves do not know.

The open environment of the Biology Workbench is fundamentally different. By providing access to essentially all that is known about biomolecular sequences and structures, together with powerful analysis and visualization tools, the Workbench makes it possible for students to learn more than what their mentors and teachers know, and even to generate new basic knowledge. The key idea here is not only that there is a large amount of material, but that the data are constantly changing as a result of scientific work. This is true of course for the Web in general, but appears more striking in the case of rapidly changing molecular data (see point #2 below).

This aspect of the Workbench was exemplified by one instructor who was using the Workbench in a university class. She commented that once the students went beyond working through specified exercises, they were essentially doing original biological research, doing analyses that perhaps had not been done before, and she was hard pressed to know how to grade their work.

Open Computational Environment

In addition to providing a window to the entire world of molecular biology, the Biology Workbench is open in a second sense. It is continually growing, adding new features that extend its capabilities and domain of applicability. New domains of applicability include the ability to reconstruct metabolic pathways by utilizing data from newly developed microarrays (gene chips and metabolic flux chips) and the ability to do molecular simulations. The Workbench continues to grow as the whole field of computational molecular biology grows, because it is more than a computer program. It is a computational environment that integrates tools for exploring and learning about all aspects of molecular biology. This dynamic growth is both a plus and a challenge for teachers or curriculum designers who might reasonably seek consistency in their curricula.

Open Community

The Biology Workbench exists within a community of investigators working across a variety of areas within molecular biology. These investigators are not only users, but creators of the system, as they add their research results to the available corpus of articles or their findings result in additions or other modifications of the databases. This community is a powerful resource for education, but it does not exist to meet educational needs per se.

Students who attempt to learn through the Workbench are able to enter into that community of investigators. In so doing, they have stepped outside of the protected world of the classroom. Their learning becomes much less structured, even potentially hazardous without the assurance of carefully vetted curricula, but it can also be far more engaging and applicable to learning beyond the classroom.

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Juanita Goggins

[Note: This post was written five months ago, but I must have forgotten to click “publish”. I’d like to have it on the blog, even though her death is now old news, if only to help record a courageous life.]

I was saddened to learn about the lonely death of Juanita Goggins, a great leader and educator. Her life is a reminder of both the possibilities we have and the great challenges we still face around race in America.

Goggins was the daughter of a sharecropper in rural South Carolina, the youngest of 10 children, and the only one to earn a four-year college degree, from what was then all-black South Carolina State College. She taught in South Carolina’s segregated schools, and then went on to a number of major achievements.

In 1972, she became the first black woman to represent the state as a delegate to the Democratic National Convention. Two years later, she became the first black woman appointed to the U.S. Civil Rights Commission and the first black woman elected to the South Carolina Legislature. She was responsible for funding sickle-cell anemia testing in county health departments and sponsored key legislation on school funding, kindergarten, and class size.

One indication of the world she had to navigate was the Orangeburg Massacre. In February, 1968, students from Goggins’s alma mater attempted to bowl at Charlotte’s only bowling alley. The owner refused. Tensions rose and two days later violence erupted. The Orangeburg Massacre resulted in injury to 28 students and the death of three.

Sadly, by the early 1980’s, Goggins had developed mental illness and in later life became increasingly reclusive. She froze to death at age 75, living alone in a rented house not far from the Statehouse in Charlotte, where she had served.

See Once-revered lawmaker freezes to death alone (Associated Press, March 10, 2010).

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My retirement plans

It’s with satisfaction, relief, anticipation, and a tinge of sadness, that I submitted my intention to retire in August of this year. I will have been with the University of Illinois for twenty years, half of those in the College of Education and half in the Graduate School of Library and Information Science. The retirement means that I’ll be changing my mode of work, with more attention to writing and more international projects.

I’ve enjoyed and benefitted greatly from my time here, and even more from working with you all. I can’t think of another group anywhere with such high collegiality, dedication, moral perception, and responsible leadership. The scholarship, teaching, and learning have always been outstanding and there’s been a lot of fun on top of it all.

I expect to continue working part-time on the Youth Community Informatics and Community Informatics Corps grants through June, 2011, and perhaps do other work after that, so this is not a good-bye, just an announcement about a new role for me.

Best wishes and enjoy all the snow,

Chip

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Elizabeth Peratrovich Day

Today, February 16, is Elizabeth Peratrovich Day. I learned about it from Bonnie and Hans, friends of nearly 30 years. They have a great blog, Bonnie & Hans’ Excellent Adventure, out of Grayling Alaska.

In a recent post, Elizabeth’s Day, they talk about Elizabeth Peratrovich the Anti-Discrimination Act of 1945, Alaska’s Civil Rights Day, and the film For the Rights of All: the Ending of Jim Crow in Alaska, a documentary about the work of Alaska Natives to end discrimination.

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Coming attractions!

Patrick W. Berry’s course website Writing Technologies is designed to “explore historical and theoretical accounts of how writing technologies have shaped and continue to shape what and how we compose” and to write “using a variety of new and sometimes old technologies in order to explore the affordances and limitations of each.” It’s wonderful to see how the medium of the course illustrates the very principles it’s teaching.

In addition to excellent standard course resources, there’s a blog, with many interesting posts. One, of special interest to me, is “The Disappearance of Technology”: The Movie. Patrick writes:

After reading Chip Bruce and Maureen Hogan’s “The Disappearance of Technology: Toward an Ecological Model of Literacy,” our class created movie posters using Photoshop that attempted to capture a central theme of the reading.

The result of this effort is available here: http://gallery.me.com/pb112233/100088.

The idea to do the posters and the subsequent realizations are excellent (be sure to try the slideshow option). I was impressed by the variety of responses and the creative use of photos, colors, graphics, fonts, and other visual elements. The posters show how re-mediating an idea can both bring out the meaning and add new meaning as well, with different posters bringing out different aspects of our relations with new technologies.

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Banning books

The always controversial Texas State Board of Education added to its tragicomic history with a confusion over Martins:

Brown Bear, Brown Bear, Why Were You Banned?

Bill Martin is a philosophy professor at DePaul University who has written a book called Ethical Marxism: The Categorical Imperative of Liberation.

Bill Martin Jr., who died in 2004, was a children’s author who wrote Brown Bear, Brown Bear, What Do You See? The men are not related.

Last week, the two Martins were briefly fused into one persona by Pat Hardy, a member of the Texas State Board of Education, who moved that Bill Martin be removed from a suggested revision of the state’s third-grade social-studies curriculum. The Fort Worth Star-Telegram quoted Ms. Hardy as saying that his books for adults contain “very strong critiques of capitalism and the American system.” –Don Troop

The  issue might be simply amusing, except that the Texas State Board of Education decides what will be taught in Texas public schools. Because the Texas market drives what publishers sell in other states, it plays an extraordinary role in defining American public education.

Recently, the Board has considered reviving the reputation of Senator Joseph McCarthy, to portray him as an American hero. They also debate the Biblical underpinnings of the nation’s founding, the superiority of America, and its divine ordination.

Pat Hardy, is from my hometown of Fort Worth. Unlike many others on the Board, she’s actually an educator. Although she’s a conservative Republican, she’s been attacked in elections to the Board by social conservative groups, who criticize her insufficient support of creation science and lack of solidarity with the social conservative bloc on the board.

Much of the commentary on this incident has focused on its silliness, on the apparent confusion of such different authors and books. But for me, it raises some important questions about the Board, and by extension, American education:

  • What if Bill Martin Jr. (the children’s book author) had written a book on ethics? Would that be a bad thing? Would that justify banning his beloved book for children?
  • Must we agree with Bill Martin (the philosopher) about vegetarianism and animal rights in order to read his book? Is it wrong to read a book that critiques and extends Marxism?
  • Should the role of the Board, or the role for any of us as educators and citizens, be to weed out books with ideas we don’t accept (or perhaps, understand)?
  • Do we want students to grow up unquestioning, and safe from bad ideas only when we diligently purge them from their world?
  • Might we do better to “teach the controversy,” as Gerald Graff says, to open up the world of books, ideas, and learning, rather than to try to shut it down?
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ReadWriteThink

Since 2002 ReadWriteThink has provided literacy educators with access to a large and growing collection of free educational materials. There are hundreds of lesson plans, calendar resources, printouts, and interactive tools.

The site has become one of the most used web resources for educators and students, and has just released a much-improved design. The content is now browsable by type, grade, learning objective, theme, and allotted time. Out-of-school resources for parents and afterschool providers have been consolidated into an easily accessible section.

ReadWriteThink is a partnership between the National Council of Teachers of English, the International Reading Association, and Verizon Thinkfinity. Bringing these organizations together has been an important contribution of the project in its own right.

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Minds-on Math, Science, and Social Studies with standard school supplies

Jack Easley was an professor at the University of Illinois from 1962 until his retirement in 1989. His research on cognitive development in the learning of science and mathematics across various cultures influenced educators around the world. He co-founded the Dialogues in Methods of Education group, which continues to this day. He was also a much loved friend, who died December 10, 1994.

I recently came across some insightful email messages from Jack. Here’s one that I’m certain he would like to have shared more widely, even though they were simply rough notes related to a project:

There is a lot of attention given over to kits and manipulative materials for inquiry. Since these are not always available, it is worthwhile looking at what can be done without the kits, the manipulative blocks, etc.

Math

The Japanese schools use cardboard replicas of plastic tiles, and several teachers in the US have found that these can be cut out of file folders with a paper cutter. It is not necessary to have one set for each child, but the following sizes would be appropriate for each team:

  • 5 square units (half-inch squares are usually fine, but 1in or 1 cm can be used.)
  • 2 oblongs, 5 units long (e.g., .5 in by 2.5 in)
  • 5 oblongs, 10 units long (e.g., .5 in by 5 in)
  • 2 fifties (e.g., 2.5 in by 5 in)
  • 10 hundreds (e.g., 5 by 5 in)

With rulers, children can mark one side of the oblongs, fifties and hundreds into ways that show how they all fit together. Other sizes ( 20s, 40s, 25s, etc.) are often convenient, depending on the story problems (going to the bank, etc.) children are solving with these cardboard tiles.

Using bulletin board paper, scrolls of 500 or 1,000 units can also be cut and rolled up (e.g., 5 in by 25 in, or 5 in by 50 in). To make representations of even larger numbers is not much of a problem with the smaller sized units, but if you use 1 sq in as a unit, it begins to get out of hand.

The size of unit can be chosen not only with the fine motor coordination of children in mind, but with the fact that place value and round numbers upwards of 99 are much easier to talk about than those between 9 and 100. Smaller unit sizes (.5 in or 1 cm) should permit more meaningful work with scrolls for numbers like 5,000 or 10,000.

In my opinion, and that of a minority of mathematics educators, the word “ten” is one of the least often suspected but most often confused among number names. The problem may be that “ten” is not a word that easily takes adjectival modification as in “Two tens, three tens, etc.” Ten is most often used as an adjective itself as in “ten fingers, ten hundred, etc.” Research suggests that it takes children until about fourth grade to realize that ten can be a unit instead of just a counting number or the cardinal number of a collection (Cobb & Wheatley, 1988; Steffe, 1983; Steffe & Cobb, 1988.) Informal observations suggest that 100, 1,000, and 1,000,000 are treated as abstract units quite naturally by most 6-year-olds. The debate is whether or not young children can plausibly attach concrete representations to those units.

There are other troubles with the names of numbers greater than 9 and less than 100, e.g., 18 and 81 sound too much alike, both beginning with the word, “eight,” and there are few people who would think that “twenty” was originally pronounced, and possibly spelled, “twain tens.” (Some have tried introducing new number names, onety, twoty, threety, fourty, fivety, and doing that seems to help in regrouping, but teachers and parents complain that children don’t know how to translate them into standard English.) Saying how many tens there are in 11, 22, 35, etc. is no longer a part of English speech today. Instead, everyone learns to rattle off the counting numbers 1 to 100 without pausing to think that there are ten cycles in that series. It may work like telling time or money. (With digital timepieces, we count minutes from 01 to 59 and then hours. We count cents from 01 to 99 and then dollars.) Starting over, which is the essence of place value, is something we don’t seem to think about naturally with those funny two-digit number names. (In the orient, and many native American languages, number names are much more sensible than in European languages.) However, all is well when we get to a hundred and we have three digits. A great deal of regrouping in arithmetic, which is the real advantage of understanding place value, can be learned by working with cardboard tiles and scrolls, without adding and subtracting those peculiarly named numbers from 10 through 99. Adding and subtracting hundreds and thousands, multiplying and dividing by hundreds and by thousands teach place value well and provide ample practice for first and second graders on basic, one-digit addition and subtraction facts.

Cutting templates for drawing the cm size tiles and scrolls in coffee can lids permits children in first and second grade to represent numbers by drawings on paper instead of actually manipulating the tiles themselves. The Japanese have found that drawings of tiles to represent an operation is a valuable intermediate step between manipulation of tiles with number sentences and writing numerical algorithms without manipulations, for it helps children invent and test their own algorithms.

Geometrical forms can be cut out of folders or paper. Also, it is instructive to draw circles, squares, triangles, and other regular figures six or seven inches across and measure their circumferences in various ways. One way to measure a circumference is to set the compass for an inch or a cm of separation and count how many steps it takes to walk around the figure and back to the starting point.

Place a pencil across your hand near the tips of your fingers. Put the heel of your other hand on top of it. Predict, Observe, Explain (POE) where the pencil will be when you have moved the heel of your top hand back until it is over the heel of the bottom hand. Do this motion several times without the pencil, then POE where the pencil will be.

Architecture

Tiling patterns that repeat endlessly can be made on a flat surface. One interesting challenge is to design and cut-out a piece of paper that folds up to make a box, a prism, a pyramid, or some other shaped three-dimensional object.

Columns can be made from rolled or folded construction paper and tested for load bearing by piling textbooks on top. The number of science books, or math books, that a column can hold is something to predict, observe, and explain (POE). One can even measure (POEM) the length, diameter, and circumference of such columns and figure out some kind of graph that represents how those quantities relate to the load a column will carry. Applications (POEMA) of what has been learned can be found, in studying the structure of buildings, bridge supports, street light and traffic light posts, and in making models of buildings. (This is also a good use for science and mathematics books which children and teachers find boring.)

Making designs for stained glass windows with a compass is an intriguing activity. A six-pointed rose window is one goal, but many other designs are possible. Of course coloring one’s design in the most attractive way possible is an added challenge, which assumes everyone has some crayons, or whatever to color them with.

Optics

Punching a pencil through the middle of a dark piece of construction paper 8-11 inches wide and laying it down on a white piece of paper on a flat desk in a well-lighted classroom raises the following question: Looking at the white spot (after making the edges neat by tearing off or folding back the torn pieces the pencil left), try to predict (P) what shape and size that white spot will become when the dark paper is raised an inch or two. (Of the hundreds of people I have asked that question, only one 3rd grade girl, who must have tried it before and one physics Ph.D. could come close.) Observe and Explain (POE) what has been observed. Measure (POEM) how high the dark paper is raised above the white paper and measure what you can of the pattern of light you can see when looking underneath the dark paper (POEM). Is there a relation between the two measurements? What is the best way to make such measurements as you gradually raise the dark paper higher and higher? Plot a graph.

Apply (POEMA) this phenomenon to other sources of light besides schoolroom lights. E.g., tape the dark paper to the window, and cover the rest of the window(s) and turn out the lights. If you hold a thin piece of white paper near the pencil hole, can you see any pattern on the white paper? Substitute a magnifying glass or hand lens for the pencil hole? How does that change the way things look? the graph? Go outdoors on a sunny day with a piece of dark paper in which you have carefully cut three or four different shaped holes about the size of a dime or less. Hold the dark paper so it casts a shadow over a white paper. What is the shape of the light spots going through the holes? How do they change as you move the dark paper higher? (POEM)

Put some water in the plastic cup or glass bottle. Put a pencil in the water. How does it look? Why? If you can find a straight soda straw, put it in and compare it’s shape with the pencil. POE what you will see when you look through the soda straw into the water.

Air

  • Blow through a piece of tubing or soda straw into a jar or cup of water. What is the smallest bubble you can blow? What is the biggest bubble you can blow? Can you blow a bubble and suck it back in before it leaves the end of the tube or straw? What is inside the bubbles you blow? How is it different from the air in the room? Where does the air in the bubble come from? Where does it go when a bubble pops?
  • Put a wad of tissue or paper towel in the bottom of the plastic cup or glass bottle, big enough so it won’t fall out when you turn it upside down. (Use tape if necessary to hold it.) POE what will happen to the paper when you push it carefully up-side down into a coffee can, plastic tub, acquarium, or other large container half full of water. (POEM) Measure how much water goes into the cup or jar. If possible, make measurements at different depths under the water. Plot a graph of how much water goes into the jar for each depth under the water. POEMA What use can you think of for the air trapped in an open container under water? Can you arrange for a cricket or other small animal to breathe that air while under water? Pour out the air trapped in a container while it is under water. Do you think you could catch it in another container under the water, pouring it from one to the other under water? Borrow another container and try.
  • Put a soda straw into water and place your finger or thumb over the open end. Raise it out of the water. What is inside? Can you do that with a piece of hose? (POE) What makes the water run back when you let go? (POEA) Homework (with parental consent and assistance): Can you do it with a wide tube like a cardboard tube waterproofed with rubber cement or melted wax?
  • If you can get a box that a drink (milk or juice) was in, and put the hose over the straw, can you blow and suck on the tube to make the sides of the box go out and in? What does it take to make a tight fit? What happens when the air can leak around the straw? What happens to the tube when you blow or suck on it?

Social Studies
Graphs

  • Sample people in your class to find out how many live with grandparents, aunts and uncles, with one parent, two parents, etc.
  • Find out who knows where various foods are produced, what kind of people produce them, etc.
  • Find out what children think about where adults get the money they need for food and rent if they work at a bank, a store, a restaurant, a post office, a police station, a school, as a house cleaner, a nurse, a doctor, a care giver, a university, a power company, etc. What do such people have to spend money for to do their work?

Science

For the following science activities, certain other things like wax paper, a mirror, a soda straw, a milk carton, a large bowl, etc. are mentioned as needed. Other things in the generic kit may be used, and POEMA may be used also. They come from: Science Games & Puzzles, by Laurence B. White, Jr. drawings by Marc T. Brown, Addison Wesley, 1975

  • Racing drops of water on wax paper.
  • Stand sideways against a wall. Push the side of your foot against the wall. Now try to lift your other foot.
  • Dip one end of a drinking straw in dishwashing liquid. Take it out. Blow in the other end. Keep blowing. Try cut ting your straw end like a cross.
  • Blow bubbles on a very cold day. Your warm breath makes them very light.
  • Push a thumbtack into a pencil eraser. Touch the thumbtack on your lip. Rub the tack hard 20 times on your sleeve and touch it to your lips again.
  • Try to drop a coin into a glass under water in the middle of a big bowl.
  • Collect and taste rain water. Does it taste different from other water?
  • Try printing your name while looking at the pencil and paper in the mirror.
  • Roll a little piece of foil in a ball and drop it in a funnel. You cannot blow it out unless you stop up the funnel.
  • Balance a ruler on your finger. with & without a ball of clay on top.
  • Have your friend lay his (her) head on a table or desk while you tap softly on the bottom.
  • Hold a pencil in your teeth while scraping on it.
  • Is your pet right or left pawed? Put some food in a jar. Which paw is used?
  • Can you freeze a penny in the middle of a piece of ice?
  • Can you turn yourself upside down with a teaspoon?
  • Can you eat an apple without tasting it?
  • Which is longer your forearm or your foot?
  • Can you tie your arms in a knot? Cross them and hold the two ends of a tube while uncrossing.
  • Write ‘A BOX’ on a card and look at it in a mirror several different ways.
  • Punch three holes in a paper cup or milk carton. Which hole will squirt best?
  • Can water stick to itself? Punch two holes side by side.
  • Can you separate pepper and salt that have been mixed?
  • Roll down a slope a full can, an empty can, a hollow ball, a base ball, etc. Which one wins?
  • Tie a string around a nail, then tie the string around another nail, and another. This is how to make a string nail xylophone, which you can play with another nail.
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Moving the world: A celebration of writing and community

Parc de la Tête d'Or, Lyon, Sergio Canobbio

Last Wednesday, I was fortunate to attend a significant literary event, called Moving the World: A Celebration of Writing and Community.

Over a three-hour period, I heard essays, letters, poems, and collaborative writing, but also saw drawings and paintings. I got to meet with the artists and to ask them questions about their work. The intellectual and artistic quality as well as the variety of the works were outstanding. The program was beautifully organized by Patrick Berry and Cory Holding.

An event such as this one is not uncommon; what made this one special was that it was held in the chapel of the Danville Correctional Center, and the artists were all inmates. They showed off the work they’ve done through courses offered by the Education Justice Project (EJP), led by Rebecca Ginsburg. EJP is a response to the abundant evidence showing that

College-in-prison programs reduce arrest, conviction, and reincarceration rates among released prisoners. Evidence has also linked the presence of college-in-prison programs to fewer disciplinary incidents within prison, finding that such programs produce safer environments for prisoners and staff alike. College-prison programs also have benefits for inmates’ families and, hence, their communities.

Captured Potential, Larry Brent

The EJP is an outstanding effort to help young men who want to become better family and community members. If you had experienced Moving the World, you’d at least have seen inmate-students focusing their energies on reading and writing, on reflecting about their lives, families, and communities, and perhaps most significantly, engaged in how they can make positive contributions to the world both inside and outside the prison.

As I said, the quality of the writing and the oral performances was superb. I was impressed with nearly all of the works. One, entitled “Progressive tears: A prisoner’s retrospective cry for Dewey’s help,” asked the philosopher John Dewey whether his progressive vision was still relevant today. Do we as a people still believe in equality and justice? Do we still see education as a means for building a better society? One may wonder, since the use of Pell Grants for prisoners was eliminated in 1994, and most prison college programs have closed.

Another essay asserts “We all want the same things.” It shows that both prisoners and ordinary people on the outside want prisoners to turn from crime to productive citizenship. Other works included letters to family members, poems, reflections on life. The painting, “Captured potential,” and its accompanying text, express well both the tragedy of prison and the possibilities. I doubt whether anyone made it through the event with dry eyes.

You can see some of the writing itself in the National Gallery of Writing.

An event like Moving the World makes the drudgery and nonsense of many other parts of life much more bearable. I not only enjoyed it in the sense of savoring, rather than counting, the moments, I was also impressed by the obvious thoughtfulness, organization, and high standards that went into it. I now understand why one instructor said that her participation has raised the standards back at the university.

References