Scaffolding student searches ... how much is too much?

I recently gave my preservice teachers an assignment where they designed an activity that had students using Internet resources. This project was based on two premises:

  1. If teachers are going to have students using the Internet to find information, they should already know themselves what kind of information is available on the the topic, and
  2. Teachers need to consider how they deliver these websites to students.

I know some people will disagree with me on this, but I approached this concept from the perspective that a tech-savvy teacher should try to maximize the amount of time students are engaged with the information that is relevant to their topic and minimize the amount of time they sit at the computer looking for stuff. I presented this project under the general theme of "scaffolding." It's a term that gets thrown around by a lot of teacher ed. professors, yet most of the preservice teachers I have talked with don't know how to actually operationalize this term. I mean, they can tell me what scaffolding is, but they don't recognize it when they see it in action and they don't know how to do it themselves. So, the scaffolding in this case was both constraining the set of resources given to the students and developing a strategy for delivering that set of resources to students.

Rather than letting the preservice teachers develop their own delivery method for the resources they selected, I gave them 3 options (yes, more scaffolding). Their choices were TrackStar, LiveBinders and Google Custom Search. Giving them a limited set of options to choose from gave us a good opportunity to talk about which tools would be most appropriate for different ages of learners and different types of media (text, video, simulations, etc.)

Overall, my students did a pretty nice job on this assignment, but it has me wondering if there are other ways to talk about helping students develop their information literacy. I approach this problem from the teacher perspective without going into too much detail about the students. How do you address information literacy and/or scaffolding with your preservice teachers?

Implementing Digital Fabrication

As I mentioned in my last post, there are a lot of aspects of digital fabrication that I really like. Students being able to design, create, evaluate, re-design and re-create objects that they conceptualized on the computer. Students being able to physically hold something they designed in a virtual environment. There are many elements of this kind of teaching that represent many of the hopes people have had for infusing technology into teaching and learning: direct application, real-world importance, creativity, etc. Until recently, most of my experience designing and fabricating objects had been done in my office on my one machine that is connected to my computer. There was no waiting for other people, no transferring files from one computer to another, no having to think about how and where to save files so I could resume my work at a later time. In the back of my mind I knew that the experience I had fabricating objects would be much different than the whole-class experience my students would have, and there were several technical aspects of this process I had not anticipated until I released it into the wild with my students.

I had some ground rules for myself when deciding how to introduce this activity:

  1. I wanted to give the class 1-2 authentic tasks to do. I did not just want to just have the students using the software for the sake of using the software. That has never turned out favorably for me.
  2. I wanted them to be able to finish in one week. That means one class meeting for one section and two for another.
  3. I wanted them to have fun and like what they are doing. This all gets back to my belief (and that of many other people) that one way to change attitudes toward technology is to provide people with engaging, meaningful and yes, fun activities that include technology. People, teachers in particular, tend to abandon technology because they have had bad experiences with it.

So, I set out to design an activity that met these criteria. I had the students complete these activities and submit their work when they were done. The first activity was used to introduce the software (no printing or cutting involved), and the second activity was for application. Overall, my students were very gracious and rolled with the punches. They seemed to like the second activity more than the first (Really!?!), and though I have no data to support my claims, I truly believe they understand digital fabrication more than they did after reading an article and watching a video. Here are my reflections (both technical, pedagogical and philosophical) from the experience.

  1. You have to print from the same computer you will use to cut the shape.  If you print from a computer that does not have a Silhouette connected to it, the software will put the wrong orienting marks on the paper and it will be useless for cutting ... unless you want to cut it by hand.
  2. The trial version of the software does not let you save your work. You must have a licensed version to save a project on one computer and open it on another.
  3. The printing and cutting step of this process is a bottleneck. I have 24 students in each class. They worked in groups of 3, and I brought 2 fabricators to the lab.  Under ideal conditions, everything went pretty smoothly. As soon as there was a hitch, and there were a couple, the line got a little backed up.
  4. The more fabricators you have, the better. However, the trade-off is that the more fabricators you have, the noisier your classroom will be.
  5. I received a couple different versions of this comment, "I have a hard time envisioning myself doing this activity with my class." It's hard to situate an activity within an instructional context AND create obvious connections to other instructional contexts. When you give preservice teachers a task, they tend to focus on the task. A seasoned teacher may do a better job of seeing those connections because she will have more applied experience than a novice teacher. In other words, I could have done a better job of facilitating what Salomon and Perkins call high-road transfer. I think requires some application and reflection, which we didn't really do.
  6. Related to the previous observation, there needs to be more emphasis on creativity in teacher education programs. Rather than being a thing a person either has or doesn't have, I think of creativity more like a muscle that needs to be exercised in order to grow and stay healthy. The older I have gotten, the more purposeful I have become in my creative pursuits. As for my role in the creative development of my students, I think the best way to do this is for them to create a digital fabrication activity in their preferred content area. It's one thing to be able to do my activity. It's an entirely different level of creativity to be able to create a learning activity for a group of children. I may do this at some point.

Overall, I would say this was a good activity for my first attempt at a new concept and new technology. I have a completely different vision for how this will look the next time I do it, which is evidence of learning on my part.

Teaching virtual design in a physical world

I first became familiar with the term "digital fabrication" when I was finishing up my dissertation at the University of Virginia. My advisor, Glen Bull, came into my office one day and asked me to watch a demo with a machine he had recently found. I watched with fascination as he created a 3-D model on the computer, printed it as a 2-D net, cut it out in seconds on the CraftROBO machine and folded it into an exact replica of the model on the screen. This was amazing on several fronts:

  • It took a matter of minutes to do what would have taken me a whole math lesson (or more) to do with my 4th grade students
  • The fold lines were clean and perforated. The physical object actually looked like the model on the screen. For students who have been spoon fed high-quality media since birth, that makes a difference.
  • The design was separate from the actual object, which means I could go back to the computer model and make alterations/corrections, then print another one.

That final point is, in my opinion, significant. Let me explain this by making a comparison to the writing process. For children, the act of writing something by hand is laborious. It's labor-intensive to me, and I've been doing it for 35 years. So, when children write something on paper, they want that to be the first and final copy of that particular piece of writing. It's not that they don't like proofreading, editing and revising, but every change they make means another word, sentence, paragraph or page they will have to rewrite. Writing, in addition to being cognitively demanding, is physically demanding on a child's fine-motor skills. Perhaps Malcolm Gladwell is right, that the best people in a certain field aren't always the most naturally gifted, but those in the right place at the right time with the opportunity to perfect their skills. Maybe the best writers in school are those that don't get burned out from the physical act of writing.

The same is true when students are creating things in the classroom. I used to have my students cut out nets from graph paper and fold those shapes into 3-dimensional objects. After spending more than one math lesson to do this,  we could finally get to the learning. This is not considered efficient in the business or medical world, yet in education we just kind of shrug it off and learn to deal with it. And what happened if a student's shape was not exactly symmetrical or was missing a side? Well, they got to be the kid with the lopsided shape. What if I wanted to demonstrate how changing the dimensions of the shape could conserve volume but change surface area? I guess I could have the students cut out a new shape, but there goes another 15-20 minutes. The fact that the media students used to design the object also became the object used to teach the concept was problematic.

This is not as much of a problem when the students design their model on the computer because they can manipulate it without having to physically create another shape. And for all those Piaget and Montessori fans out there, the end result is still a physical object that students can touch and compare. Students learn the basic foundations of rapid prototyping and iterative design, two principals and practices that pretty much define research and development. This is a far cry from the current model of "one and done" projects in schools today.

Below is  a video created by the folks in the Curry School of Education at the University of Virginia who are starting to explore how digital fabrication can be applied in schools to enhance student learning.

I will follow up in a couple of days and explain how I took this concept and turned it into a learning activity for my preservice teachers.

Using Posterous as a class photo archive

I have been playing 5-Picture Charades with my classes for many years. I first came up with the idea (though I'm sure I wasn't the first person to do so) back in the mid-'90's when I was teaching elementary school. I would have my students pick an excerpt from whatever book we happened to be reading, and they would have to act out that scene in 5 pictures. They would then share the images with the class to see if anyone could guess the scene. As you can imagine, the activity was a lot of fun and the students loved it.

In addition to this activity being fun, I also noticed that there was a lot of higher-order thinking going on. Students were having to synthesize passages, evaluate which scenes most accurately characterized their passage, narrow them down to 5 images, decide how to physically portray those 5 essential scenes and ultimately create them. One reason the students loved this activity was because it was challenging, but the kind of challenging that is so much fun you don't realize how much work it actually is.

When I started teaching technology integration courses, I used this activity to teach my students how to capture, edit and publish digital images. I found that they were much more motivated to engage in these  skill-development activities when they were using their own images that they just had a ball creating. I typically gave them fairy tales to act out, but occasionally I would just give them some boundaries (e.g., U.S. History, Literary characters, etc.) and let them pick their own topic. The former category is much easier, but the latter produces much more entertaining image sets. We then use the images to practice image editing, digital storytelling and uploading (which, thanks to Facebook, most of them are already pretty good at).

The only sticky part to this activity every semester was sharing the images with the rest of the class. I tried having them save all of the images to the instructor computer, but it took forever and people ended up sitting around waiting for others to finish. I also tried having the students e-mail the images to me, but that also took forever and sometimes the images were too big to attach (this was before Gmail had such massive attachment allowances). So, it was always tricky getting everyone's images into one place where we could view them.

Well, last semester I got tipped off to Posterous by Wes Fryer, and I decided to use it today for this activity. I created a class account and had the students follow these instructions as soon as they came in from taking their pictures:

  1. Transfer the images from your camera to the computer.
  2. Go to http://posterous.com
  3. Log in using the following credentials
    • E-mail:
    • Password:
  4. Click on the button that says "Post by web"
  5. Click in the Title field and name it based on your group and section (e.g., Section 001, Group 1)
  6. On the right side of the screen, choose "Upload images, audio, video and docs"
  7. Choose all of your photos at once. You do this by holding down the CTRL key as you click on each photo. Once all 5 images are selected, click Open.
  8. After the photos have uploaded, click Publish.
  9. Have each person in the group save all 5 images to their flash drive
  10. Delete the images from the camera.
  11. Put the camera and all its parts back in the box and return it to me.

I am telling you, I have done this activity many times, and it has never gone as smoothly as it did today. The students came in and got right to work uploading their images to our class Posterous site, and within minutes we were laughing and blurting out trying to guess each group's fairy tale. There was essentially no waiting around or wondering what happened to some of the images. It is almost as if the gallery method of displaying images in Posterous was created just for this activity, and an added bonus is that I now have access to each of these images without having to go around to each computer and copy them to my flash drive.

I definitely recommend Posterous as a place to have students upload images. Flickr groups or Picasa albums are also good, but this is by far the easiest method I have ever used for this purpose.

Learning Management Systems: Hub or Silo?

North Texas has literally been shut down for the past 3 days, with a 4th day impending. We had an arctic front blow in on Monday night, leaving a sheet of ice and snow, and sub-freezing temperatures to keep it intact. Every college, school district, private school and many businesses have been closed since Tuesday.

For the first day of this freeze I was feeling smug because I had already planned an online class for both of my sections of "Computers in the Classroom," at UNT. I had most of the materials ready to go, so it was looking like I would just need to make them available to my class and spend the rest of the day hanging out with my family. I released the materials late Tuesday night, and I didn't think about it again until Wednesday when a student e-mailed to say she couldn't access Moodle. I went to Moodle, and she was right. Nothing.

In addition to cold weather, North Texas was experiencing power shortages caused by over-burdened power plants. In response to this shortage, the state implemented rolling blackouts. We lost power 3 different times on Wednesday for about 20 minutes each, which was only a slight inconvenience. These same rolling blackouts also cut power to Discovery Park, where the Moodle servers are housed. The servers went down, and as of this writing no one has booted them back up. This experience added another chapter to my love/hate relationship (mostly love) with LMS software.

I have been using Learning Management Systems (LMS) since 2005 to help me teach my courses, most of which have been face-to-face. Over the years I have had mostly good experiences, some bad experiences and many teachable moments. I have use Moodle, WebCT, Blackboard, Toolkit (homegrown at UVa), Collab (built at UVa on the Sakai platform) and eCollege. Each of these packages has its own affordances and constraints, and I haven't found any of them to be completely idiot proof. What I have learned is that LMS, no matter which one you are using, make a great hub but a lousy silo.

Silo: a self-contained, secure, private space in which only those with credentials may enter. As in, missle silo.

Hub: a central place that brings together many different pieces from several different places.

People who use LMS as a silo upload everything and post all of their content to the LMS. If they teach more than once section of the same course, they do all of this twice. If a document needs to be updated, they take it down from both sections and upload the updated document. Twice. You get the picture.

People who use LMS as a hub, as I do, keep the content from their course in a place other than the LMS. Rather than uploading files and adding content directly to the LMS, the content is all linked to third-party tools. Here is what this looks like for me: 1) all course documents are in Google Docs and linked to the LMS, 2) all course materials (PDFs, videos, etc.) are hosted on Google Docs or YouTube and linked, and 3) my lesson plans for each class meeting are in Google Sites and linked.

This may not seem like a big deal until your servers go down and you have 48 students trying to access Moodle at once. For me, it meant the difference between postponing class and having each student finish the activities in the allotted time. I was able to send the students the links to the docs and lesson plan, and not one student missed a beat.

This does not mean LMS don't have their place. They are essential for posting grades and giving feedback to students. They are excellent for facilitating discussions within the class. They are also a great hub for content so that students only have to look in one place for course materials. In my experience, they don't even know I am linking to everything from a third-party host.

Other advantages to using third-party tools are:

  1. When I want to update a document for multiple sections, I only have to make the changes in Google Docs and they automatically show up wherever the document is linked.
  2. If I want to reuse materials for another class, I know where to find them. No searching archived courses to find rubrics, lesson plans or assignments. I just update the materials and link them to the current course.
  3. I have access to my course materials if the servers go down, and I can easily send them to my students if necessary.

This has been quite the learning experience, and I am glad I came out of it on the positive side. What tricks and tips do you have for using LMS in your teaching?

Students and informal learning

I had the opportunity a couple of years ago to contribute to an ISTE book, Teaching with Digital Video, an effort put together by Glen Bull and Lynn Bell. One of the chapters I helped write discussed student-created video in informal learning environments. The premise of this chapter is that rich, deep learning can (and do) take place in settings other than school and without a teacher's direction. I was able to provide a few examples of such learning in the chapter.

Along these lines, I have been working with a News Media club at a private K-8 school, and one of the things the students wanted to learn was how to edit video and use a green screen. The school just happened to have recently invested in a green screen and video editing software, so the conditions were perfect for trying out the new equipment.

Because this is a club, rather than a core class, combined with the fact that the students are all new to video editing, I decided to start with something small and simple, which in this case was Charades. I told the students which scenario to act out, and we filmed them performing in front of the green screen. After each student had a chance to participate (twice!), we went to the computer lab and did some simple editing. You can click on the link below to see the result of our efforts, a simple 1-minute video:

The thing that excites me about this experience is not the technology, but the students' response to the activity. I had students stopping me in the hall later that day asking me when we were going to use the green screen again. I could tell their ideas and creativity were flowing. Green screen is cool, but students who are excited about being creative and taking ownership of their own learning is even cooler.

Digital identity

The first time I thought about managing my identity as a teacher was during my junior year in my teacher education program. The final project for my language arts methods class was a professional portfolio that included: a narrative about myself and my philosophy of teaching, my philosophy of classroom management (which was so ridiculous I am ashamed that I actually put it in print and let others look at it) and examples of exemplary lessons and other projects I created for my teacher ed. classes. I remember putting a lot of time and thought into this project because I knew it could potentially be something really cool/impressive to show during a job interview. At the time, my portfolio was quite the technological wonder. Yes, the deliverable was still a printed document (a book printed and bound at Kinko's), but I designed the entire thing on my Mac LC 520 computer. This was a stark contrast to how my classmates completed the project, which included a mix of word-processed and photocopied pages thrown together in a three-ring binder. I used a scanner and Clarisworks to make the entire portfolio have a consistent design throughout. At the time, it was quite impressive, and I think I still have a copy somewhere in a box in my parent's basement.

With all of the digital tools available now (17 years after I crafted my first portfolio!), there is no reason that preservice teachers shouldn't be able to put together a killer digital portfolio. While many of the principles for presenting a portfolio haven't changed that much, if at all, in 17 years, the tools we have access to for making one are lightyears beyond my little all-in-one Mac.

I entered the world of digital portfolios when I was teaching the class "Teaching with Technology" at the University of Virginia. I had my students create a digital portfolio using HTML, and they hosted it on their Home Directory. The project started off very clunky and frustrating and eventually became one that the students all loved and commented that they felt most satisfied with. I eventually abandoned NVU and Home Directory for Google Pages (now Google Sites), and the quality of the projects increased exponentially (not to mention the number of e-mails from frustrated students almost vanished). Looking back, the major drawbacks of this portfolio were that it focused on the projects only from my class and most of the students viewed it as an "assignment" rather than a tool that would continually evolve and could ultimately become an archive of their teaching careers.

My journey into the world of digital portfolios continued when I taught at the University of Illinois Springfield. The department I was teaching in (Teacher Education) had adopted TaskStream for the teacher candidates to use for building their digital portfolios, so I had to adopt this tool as well. Overall, it was pretty easy to use and the final product looked very professional. Besides the fact that the portfolio's format was very prescribed (meaning, it helped my department meet its objectives more than it helped the students meet theirs), the main drawback with TaskStream was that it cost money (not a little money, either), almost ensuring that 99% of the teacher candidates would not use it after they graduated. Once again, I was stuck in this rut of "assigning" a digital portfolio for a "grade," which means when the grade is given the assignment is done.

So, when I was asked to teach a section of "Computers in the Classroom" at the University of North Texas, I was once again in the position of thinking about how to structure my final portfolio project. Having a little more freedom than I did at UIS and having learned some lessons from UVA, I tried to improve my portfolio project. Here is the project description from last semester (Fall 2010). As you can see, it is still pretty "my-class-centric."

But it's amazing what one little blog post can do to spark some new ideas. I taught concurrently with Wes Fryer last semester, and we were constantly bouncing ideas off each other. He addressed digital portfolios in one of his posts, which helped me develop my latest iteration of my digital portfolio project.  Here is my latest project description, which I am pretty happy with at this point. I'm sure once my students get their hands on it I will see some areas that need clarification or revision. The obvious weakness of the current version is my rubric (which really isn't a rubric), which I will definitely be revising.

So, do you give a final portfolio assignment? How structured/open is it? What elements do you have students include that I have overlooked?

Complicated teaching practices in a complex world

A few weeks ago I wrote about Malcolm Gladwell's distinction between "puzzles" and "mysteries," and the implications of this difference for teaching and learning. I didn't know until recently that someone else, Larry Ferlazzo, blogged about the very same concept, though with a slightly different application. He recently referenced this post in a newer post, where he discusses the difference between "complicated" and "complex," which was based on an article by Larry Cuban. In a nutshell, he describes the difference in the following way:

A complicated system assumes expert and rational leaders, top-down planning, smooth implementation of policies, and a clock-like organization that runs smoothly. Work is specified and delegated to particular units.

and

Complex systems like criminal justice, health care, and schools, however, are filled with hundreds of moving parts, scores of players of varied expertise and independence yet missing a “mission control” that runs all these different parts within an ever-changing political, economic, and societal environment.

Cuban's description of complicated and complex environments really resonated with me, and I have done some thinking on the matter. What really struck a chord with me is the relevance of this comparison to educational technology, specifically coursework and professional development on how to use technology in the classroom.

My observation about many of the teaching practices in schools these days is that they are not very complicated. In fact, after a full semester of observing several student teachers concurrently last year, I would say that much of what goes in classrooms is fairly routine (which, according to Merriam-Webster, is: habitual or mechanical performance of an established procedure).  This statement applies to the cooperating instructors as much as it does to the teacher candidates. Why is this? Are teachers lazy? Do they have priorities other than teaching? Are they burned out? Actually, no. The overwhelming majority of teachers I have met and worked with love their students, love their school, love their co-workers and are passionate about the profession.  Yet many of them show up everyday and do the same tick-tock of learning activities with their students, week in and week out.

I think one explanation for why teachers approach their instruction this way is that schools, and classrooms in particular, are complex environments. Teachers have to be sensitive to and balance differences in student ability, behavior, background and home influences, and motivation/engagement. Add to this a very top-down system of curriculum, mandates, expectations and accountability, and it's not too hard to understand why young teachers choose to take a different career path after a few years. Classrooms are complex, with many moving parts, each of which influence each other. I think many teachers choose to simplify their teaching because it's one thing they can do to maintain their sanity and have a life outside of work. Sure, there are those who have made work their life. This was definitely the case for me as an early career teacher with no wife or children and, honestly, not much else to do.

One mantra you will hear from technology apologists like myself is that if you ever decide to use technology in your instruction, make sure you have a Plan B. I rarely had a Plan B, and thankfully I had very few experiences when the technology failed me. But this is what gets taught. If you want to teach with technology, have a backup plan. So, does this mean teachers should plan two lessons? I guess it could, which means you have already lost half of your teachers because they barely have time to plan one lesson. If a teacher really knows the lesson inside-out, he or she should be able to make something out of it should the technology fail completely (laptops aren't charged, Wi-F isn't working, servers crash, etc.). But many teachers are turned off by the mere possibility that something could go wrong, leaving them stranded in front of the class with absolutely no clue for how to resolve the issue. When you think about it, whether you are a geek or a total luddite, teaching with technology is complicated. Technology is complicated for most people. It involves steps and protocols, knowledge of different interfaces and nuances that vary between programs, and to some people they feel as if they are learning a new language. It's complicated ... and intimidating ... and something they are very reluctant to try. Human nature leads us toward a desire for mastery, so why would someone introduce a complicated factor into an already complex environment and risk feeling stupid?

I don't have an answer to that question. I do, however, think that it's important to give inservice and preservice teachers the opportunity to plan, implement and evaluate complicated technology-rich lessons in a complex environment. Most of the projects I have had my preservice teachers do over the years have been done in a pretty sterile environment. The focus has been more on getting the project done on time rather than designing something that students will ultimately learn from. Tech-based internships or field experiences are a way to address this problem, but I know from experience how time and labor intensive they can be. And we are at a time when some teacher education programs are looking to reduce course loads, not add to them. Everyone already thinks their secret ingredient should be added to the special sauce of field experiences, and at some point they may cease to be useful to the preservice teachers get too distracted from the practice of planning and delivering instruction, and assessing student learning.

This post, for me, has generated a lot of questions that I hope to grapple with and address in the coming weeks. Thoughts? I would love to hear what you have to say.

It's the pedagogy, teacher.

This was a phrase that got tossed into our conversations from time to time in grad school. It's a silly play on the famous phrase from the 1992 Presidential election. When you spend the majority of your time talking and working with other Instructional Technology doc students, it's easy to get sucked into the technology black hole of creating and tweaking new technology tools for teachers and students. There is definitely a time and place for new innovations, but sometimes the most appropriate solution to an educational problem lies in an innovative use of an existing tool. Almost every one of our conversations came down to this point: It's not the tool so much as what you (the teacher and/or students) do with the tool. Along these lines, the concept of repurposing resonates with me. Anyway, I read a post today by Dan Meyer that reminded me once again that technology is really only as good as the teacher who is using it. I won't recap the entire post, but the conversation just goes to show that a teacher can find ways to make a very long video of water being poured into a tank engaging to the students. This also reminds me of the Clark and Kozma debate, though the conversation highlighted on Meyer's blog is much less about the technology and more about how teachers use media and their students' responses to it.

The take-away message for me? Don't underestimate the art of creative and innovative teaching.

Puzzle or Mystery

I have been reading What the Dog Saw by Malcolm Gladwell, a collection of essays he wrote for The New Yorker. In one of the essays he discusses the downfall of Enron, using the metaphors of Puzzles and Mysteries (originally coined by Gregory Treverton)  to compare how different people (financial analysts, prosecuting attorneys, undergraduate students, etc.) described the circumstances that led to one of the largest U.S. companies to declare bankruptcy and thousands of people to lose millions of dollars in investments. According to Gladwell, a puzzle is sender-dependent. That is, someone has a missing piece of information that, when shared with others, makes all the other pieces fall into place. He uses the whereabouts of Osama Bin Laden as an example. Bin Laden is out there somewhere, and there are people who know where he is. When (or if) one of those people gives a clue as to where he is hiding (if in fact he stays in one place for any length of time) it will greatly facilitate the task of locating him. Mysteries, on the other hand, are receiver-dependent. While puzzles are defined as having too little information, mysteries have too much information and it is up to the person to filter, categorize and organize that information into a framework that can be understood. He cites the propaganda surrounding the German's development of the V-1 "Buzz Bomb," as a mystery because the Germans were giving an enormous amount of clues about the V-1 project through their propaganda as a way to maintain the country's morale. It was up to a group of experts who knew how to decode such messages to determine if (a) the bomb was even real or not, and (b) how urgent it was to find it. In this case, there was a lot of information about this weapon being sent out over the airwaves, but the common listener was not able to make sense out of it. Along these lines, Gladwell's evaluation of the events that led to the Enron collapse is that they were a mystery, rather than a puzzle. The prosecutors argued that Jeffrey Skilling was withholding vital information from shareholders in order to make them think the company was making more money than it really was. In fact, what Skilling and his accountants did was create vast amounts of convoluted information through thousands of extremely complex investing schemes, each of which were legal (though not very ethical or wise) and openly available to anyone who wanted to read them (if in fact one finds reading thousands of pages of legal jargon fun). The issue was not that Enron withheld data; the problem was in the fact that there was so much data that no one could make sense of.

As I wrapped up my class on teaching, learning and assessment, these metaphors came to mind again. Is teaching and learning a puzzle or a mystery? Are the solutions to the problems in education (lack of student engagement, lack of a "thinking curriculum," performance gaps between different groups of students, just to name a few) still out there somewhere in Plato's "world of Forms" waiting to be discovered? Has the right genius not yet entered his or her doctoral program (ask a first-year doc student what he or she hopes to accomplish in grad school and you will see my humor in this)? Has the right technology or reading/math series or game or teaching strategy or professional development just not been invented yet? Or is it that teaching and learning is not a puzzle at all? Perhaps teaching and learning, collectively, is a mystery. The human condition is so complex, filled with competing relationships, environments, conflicting messages, emotions, struggles, beliefs, values, attitudes, desires and needs. If each of these factors interact with each other and lead to self-identity, isn't it safe to assume that these same factors will influence what my students and I bring to the learning table and what takes place between us? My message to my students was this: You have learned some skills that will help you teach, but don't underestimate the importance of your ability to make sense out of your teaching environment. I threw around terms like "scaffolding," "differentiation," "formative and summative assessment," "student engagement," and "student- and teacher-centered instruction," but I couldn't realistically expect each person to leave my class able to do those things proficiently (it was the first time most of them had ever heard those terms or attempted to operationalize them). What I hoped would happen is that defining, talking about and grappling with these concepts would make my students aware that the need for these concepts exists. In other words, I was trying to make these concepts part of the perceptual filter they will take with them into the classroom. They will develop their ability to differentiate, scaffold, etc. over time, but they must first recognize these as tools that will help them make sense out of a complex learning environment. Otherwise, they will, at best, be constantly chasing after the next great idea, and at worst, teach as they were taught as the world evolves around them. Teaching and learning is indeed a mystery, and teachers must know how to decode and work within their environment in a way that is sensitive to the students they are serving.