Computerized labs at University of Queensland

On Monday I visited Mark Schulz at the Teaching and Educational Development Institute (TEDI) at University of Queensland. I met Mark earlier in the year when he and Philip Long visited ANU to talk about the MIT/UQ iCampus project. Mark will be back in Canberra in early 2008 to talk about progress.

iLabs

The part of the iCampus project I was most interested in was the TEAL (Technology Enabled Active Learning) learning rooms. However, the part of the project UQ are concentrating on is iLabs, with online access to experiments. This allows more students to have access to expensive equipment safely. The architecture used has a "service broker" computer system which grants the students access to a experiment remotely. Normally the service broker will be at the student's institution and the computer controlling the experiment near the experimental equipment. The two systems can be on opposite sides of the world.

iLabs was created for physics experiments, but could be applied to any experimental equipment which can be computer controlled. The concept of the service broker has a lot in common with the way access to supercomputers for scientific purposes is granted on a so called "grid" system. is granted via a grid network. It might be useful if the iLab was to adopt the same protocols as used in other parts of the universities for online access. Also many of the techniques which are used to optimize response time over packet data networks could be applied to the iLab.

It might also be fun, and of some practical value, to provide an accessible interface for the disabled to the iLab. In addition to being used by people with limited or no vision and other disabilities, this could be used to provide an interface for hand held wireless devices. It should be a very useful gimmick to tell potential students how they will be able to show off to their friends by controlling a nuclear accelerator via a mobile phone.

One issue which came up was how much the learning environment needed to look like a work place. In my visit to University of the Sunshine Coast, a few days before, Dr Kathy Lynch emphasized that the learning space should look business like. In the case of the iLab, the equivalent to the office would be a laboratory. So a standard university room with computers in may not provide enough of a lab-type atmosphere. But by the time these students graduate, many labs will; be computer controlled and look much like a business office anyway.

Labs for Software Engineers

The idea of "labs" may not seem relevant for computer scientists and software engineers. However, these increasingly involve interfacing to equipment and to hand held devices, not just desk top computers. As a result computer science teaching rooms will need some of the equipment of a lab and facilities such as cameras to allow a demonstrator, or a student, to show the operation of some equipment to a group. Supercomputers are also an example of a remote experimental piece of equipment which students share remotely.

Portable learning centre

The technology of the flexible learning centre looks usable in Australia and could be built into a transportable classroom. But could this be taken a step further and be made portable? That would allow the equipment to be carried into a room in a number of travel cases and set up in a few minutes. As well as being used for education, this could provide a temporary office.

Carry Cases

One useful definition for what is portable is the size of an airline carry on bag:

Cabin baggage should have maximum length of 22 in (56 cm), width of 18 in (45 cm) and depth of 10 in (25 cm). The sum of these three dimensions should not exceed the 45 in (115 cm). These dimensions include wheels, handles, side pockets, etc.

From: Luggage, Wikipedia, 22:05, 26 July 2007.

A typical Carry On Watertight Hard Case is the Pelican 1510, which is
19.75" x 11.00" x 7.60" (50.1 x 27.9 x 19.3 cm) inside.



Display Screen

A flat panel screen such as an LCD or plasma display will not fit in a travel case. Also the large plastic or glass surface of the screen is subject to damage in transit. An alternative is a projector, DLP Projectors currently offering good brightness at a reasonable price.



Student Screens

Laptop computers are more easily packed than LCD screens. In this case high power computers are not required. An alternative is the ASUS Eee PC which has no hard disk and a 7" or 10" screen.

Cabling for the flexible learning centre

You need some way to get data and power to the computers in a flexible learning center. It is inconvenient to have to drill holes in the floor and will not allow for modular tables to be moved.

Under carpet cabling: There are specialist flat audio and flat data cables designed for use under a carpet. There are also specialist tools ("Under-carpet Wire Snake") to install the cable under an existing carpet. There are some mains power cables designed for use under carpets, but these are generally not recommended for educational environments.

Raised Flooring: The traditional method for cabling computer rooms is raised flooring. This is too expensive and space consuming for a classroom, but systems only 60mm high are available.

Its primary purpose is to provide a raised floor system that allows you to manage electrical, plumbing and air easily and effectively under your exhibit. Each foot has a metal post for adjusting level from the top of the panel. These features allow for an extremely quick installation, no tool required for the assembly but an allen wrench is required for leveling the floor. The system’s integrated shipping pallet makes packing, loading and unloading easy and simple. ...

From: "Brumark Raised Flooring", BRUMARK-Total Flooring Solutions, 2007

Tables for flexible learning centres

MIT's iCampus computer aided flexible learning centres are pictured with round tables seating nine students. But where do you get a circular table seating nine people? Would such a table be too difficult to install and move?

With a quick web search I came across some modular classroom tables seating eight.Assuming a seven foot (2.134 meter) table is used. This provides 7.151 m around the table, or .795 m per student.

This is more than provided for a typical .7m student table. A modular system could use three modules each seating three students. Each module would be a segment 2.39 m by 1.067 m. For more flexibility the modules could be made from straight sided segments, as with the tables illustrated, to allow other arrangements.

Update: 17 August 2007

A common design for modular classroom tables are Trapezoidal ( about 1500 x 750 x 750 x 750 mm). There are also some folding models, but some are designed for a meeting room, with the legs on the wrong side for classroom use. There are also Kidney-Shaped Tables.

MIT iCampus looks usable in Australia

The MIT iCampus seminar in Canberra 12th July was worthwhile. Philip Long talked about the experience at MIT and Mark Schulz about the iCampus implementation at University of Queensland. iCampus provides a number of computer aided teaching systems, some used in a classroom and some remotely. Many of the ideas behind iCampus look directly applicable in Australia, without necessarily using MIT's Microsoft based software or applications. I had to leave part way through but here are my notes on the talk:

The emphasis of the presentation was on teaching physics, as that is a priority at MIT, but the techniques could be applied to other sciences and the humanities. Also this seemed to be for introductory first year courses, which previously were conducted using live lectures with hundreds of students in the room. But I could see the same techniques applied to high level university courses and industry courses, such as the one ANU is preparing for senior government people on e-archiving.

Philip induced the talk explaining that MIT had OpenCourseWare which was essentially online free publishing of course content. While a useful resource and more you get from a textbook, the OpenCourseWare provides only limited interaction, not a whole course.

TEAL

The first technology explained was TEAL (Technology Enabled Active Learning). This provides a combination of mini lectures and lab sessions in the one nightclub style room.

The MIT TEAL leaning rooms are 3,000 square feet (279 square metres), with 13 round tables with nine students each, working in teams of three (one computer per team). The square room has 13 writing boards and eight video projection screens. The presenter stands in the middle of the room at a workstation with cameras, computers and experimental equipment. The students can watch on screens around the walls. As this is for physics, the students have actual lab equipment on the table in front of them.

One interesting comment was a return to blackboards, as they can be videoed better than whiteboards (no mention was made of electronic whiteboards). Each student has a "clicker" for student feedback (a hand held TV remote control type device). The clicker is mostly used to gauge student understanding so the content can be adjusted, but can also be used for some assessment.

Apart from the lecturer, there are two teaching assistants (graduate students) in the room to assist. The room can hold up to 117 students, but usually 80 is preferred. There is also a technical support person available to fix computers.

Philip claimed that seven foot diameter circular tables with three groups of three students had been found to be optimal (I wonder if there is a human factors reason why this is also the size of a broad gauge railway and about as big as you can fit in an ISO shipping container). The student groups are fixed for half a semester as the aim is to give students experience in working in groups. The "clicker" devices are used to record attendance.

University of Melbourne use double wedge shaped tables, which allow teachers to stand in the wedge gaps, close to the students. The Unviersity also has detailed Teaching Space Design Guidelines, including designs for lecterns and a discussion of Collaborative Learning Spaces (including the Cecil Scutt, Alice Hoy, Podium and Boardroom models).

The usual MIT TEAL session is a two hour block, starting with a review of the previous day's work, a mini-lecture with the teacher walking around the room, lab and a quiz.

Philip claimed research showed TEAL produced better results than the best lecturer in a traditional lecture theater. The environment was particularly good for helping the poorer performing students. The system was also beneficial for retaining groups who may have been disadvantaged by traditional teaching methods, including females and Native Americans.

I asked about the relative cost of the system: more hands-on learning may be better for the students, but it usually requires more hand for the teaching and costs a lot more to provide. Philip said it was neural in staff costs. There is a high initial capital cost. There was a also several years of effort needed to change the learning materials. The change also caused some resistance from staff and students used to traditional lectures. Some changes made in response to the new system were to reduce the amount of "Powerpoint" used and new staff were required to gain experience as teaching assistants for two session before being permitted to present.

Philip suggested that six to eight "star" lectures are needed to give the students the sense that they are getting their money's worth of being at a "real" university. However, the students achieved better results from the online learning, even if they did not appreciate it as much.

iLabs

iLabs provides online access to experiments (or what I would call "demonstrations" not "experiments"). Providing web based experiments requires an infrastructure. MIT does this using a service broker to grant access to specific experiments. The student can then interact with a real physical experiment at MIT using the web interface.

The one demonstrated was a transistor, setting and measuring voltages. Philip commented that webcams and microphones are set up to show a live images and sounds of the experimental equipment. This does not show much actually happening, but reassures the student that this is a real experiment. The students then go on to do experiments with real circuits. However, the students benefit from first having tried the online version and it can handle tens of thousands of users.

The interface shown was a Java program and I was unable to comfortably read the text on the screen. MIT need to modify the interface to allow the text size to be changed and provide other accessibility features (as required by US and Australian law). It might also be fun to get it to work on an iPhone.

Unfortunately I had to leave and so missed discussion of xMas Cross Media Annotation System, which provides a way to provide annotation of online content using different formats and the SLP Spoken Language Processor, which indexes audio and video content using keywords.

iCampus applied in Australia?

Australian TEAL

The techniques for TEAL sound very appealing to me, the actual implementation by MIT less so. Giving lectures to a large room full of students is not a pleasant experience for me (and I suspect not for the students either). With up to 100 in the class there is very limited scope for interaction. The danger is that as more of the content have been placed on the web, dull non-interactive lectures will be replaced with dull non-interactive online content. The TEAL approach provides a way to counteract that and fits with the latest research based ideas on education. It should be possible to blend online and face to face learning, but this needs to be as efficient, in terms of cost and staff time as existing methods to be practical.

The University of Melbourne guidelines recommend 2 square metres per student for a "Cabaret-Style" Collaborative Learning room. This is less than the 2.38 sq m per student for the MIT TEAL room and half the 1 sq m per student UoM specify for a lecture theater (1.5 sq m for a tutorial). An ANU course, such as "Information Technology in Electronic Commerce " (COMP3410), has 31 hours of lectures and 14 hours of tutorial/laboratory sessions. Assuming the recommended UoM floor areas are used, this would require an average of 1.16 sq m per student per hour, less than half that of the MIT TEAL room.

Unless the TEAL rooms can be used more efficiently than conventional lecture and tutorial rooms, twice as much floor space would be needed. However, as the TEAL rooms have flat floors and ordinary tables, they may be able to be used more flexibly than raked floor lecture theaters. While the electronic equipment for the rooms will add to the cost, using single story flat floor rooms may make them cheaper than lecture theaters.

The MIT TEAL system uses dedicated, fixed size rooms. Systems with movable room dividers, as commonly used in commercial convention centers might be used to divide one TEAL room into several smaller tutorial rooms. Rooms may also be made multi propose, providing study space for students, or computer labs, when not needed for classes. This could replace some of the study space now commonly provided in university libraries.

Merging online and face to face education

My ACS Professional Development Board provides postgraduate education for IT professionals, using the Australian Moodle system. This uses online tutorials and interactive learning. However, it lacks any face to face component.

I used my own installation of the Moodle system for a one day commercial industry course on writing for the web with 24 students. This has the students in groups of two sharing a PC. The students sat at two horseshoe shaped rows of 12, with myself and a projection screen at the focus. This just happened to be the arrangement which the organization's trainers usually used for live courses and I adapted for blended online/live training. It worked very well and was intending to use at ANU.

ANU Computer Science is considering reequipping one of its rooms as an electronic leaning lab. The design is similar to the TEAL floor plan. I dubbed this "Project Trocadero", as the floor plan is similar to a nightclub. One issue is how much all the equipment gets in the way of the person to person interaction. An interactive projection screen was proposed, but given MIT's reversion to chalk boards, does not seem a priority. One approach would be to make as much of the equipment as possible wireless, to allow easy rearrangement. The walls could be covered with full height lockable cabinets to conceal cables, hold electronics (as in the "Office in a Box" design for my Smart Apartment home office). Cupboard doors could be surfaced to act as black and white boards with electronic screens attached with VESA Mounts or simply bolted to the doors.

It would be possible to build a low cost transportable version of such a room. WiFi communications to wireless, battery powered devices could be used. That could mostly consist of laptop computers. The large wall screens could be LCD TVs, with the video signal transmitted to them. Thin client workstations, preferably running Linux, are another option. Those needing Microsoft Windows applications could use Citrix or similar, as used at the new State Library of Queensland. Wireless thin clients could be simply fixed to the backs of LCD panels.

Australian iLabs

The idea of online experiments could be applied beyond the hard sciences. For teaching web design in the ANU's Networked Information Systems course I found TAW (Web Accessibility Test), from the CTIC Foundation in Spain to be very useful. For teaching metadata in the ANU's IT in e-Commerce course, the Reg and Reggie tools deveoped by the former Distributed Systems Technology Centre (now mantained by Metadata.Net) were useful. These tools were used on live web sites, adding an element of realism to the exercises.

MIT iCampus in Australia

Philip Long, from MIT's iCampus is in Australia talking to universities about the project. University of Queensland have an iCampus node.

There will be a presentation on the iCampus initiative 12th July in Canberra at the ANU:

Australian University Participation in the MIT iCampus Learning Outreach Program: What is it about and what is in it for us?

When: Thursday 12th July, 1:30pm

Where: ANU Psychology Building, PSYCHG6

Speaker: Dr Philip Long, Senior Strategist, Office for Educational Innovation and Technology and Director for Learning Outreach for MIT iCampus MIT

with Dr Mark Schulz
Director of Learning Outreach, School of IT and Electrical Engineering, The University of Queensland and Director, Australian Hub of the iCampus Learning Outreach Program

"The iCampus Outreach Initiative seeks to disseminate innovative educational technology tools that can make a significant, sustainable difference in how well and quickly students learn, how much they remember, and how fast they can shift from absorbing facts and concepts to creating new ideas and solutions themselves. With generous support from Microsoft Research, iCampus Outreach seeks faculty and institutions looking to adopt new educational tools. The Outreach project will provide the software tools, supporting documentation, and guidance to assist higher education institutions to successfully implement these tools." Taken from
icampus.mit.edu.

This talk will start with a very brief overview of the iCampus projects developed at MIT and being disseminated to the academic community. We will provide an additional focus on the iLabs project (online, remote experiments) with a view to ANU controlling access by students (24 hours per day, seven days per week from anywhere on the planet) to experiments and equipment at ANU.

To find out more information about the iCampus Outreach projects at MIT
view icampus.mit.edu ...