Monday, March 30, 2009

Academic technology dreams

While thinking about the stack of 34 laboratory reports that sat at home waiting to marked for data tables, graphs, analysis, quality of conclusion, format, grammar, vocabulary, organization, and cohesion, I was explaining the capabilities of Turnitin.com to a colleague.

I run a writing intensive physical science course. As any expository instructor knows, marking essays is a long process. And at full capacity I have 32 essays to mark each and every weekend of the term. I believe that the ferocious turn around pace that I demand of the students provides both lots of opportunities to write, and an immediate opportunity to correct in the next lab the errors of the previous lab. A lab is handed back on Monday, the next lab is due that same Thursday.

I see concrete improvement in the writing capabilities during the term. I see fewer sentence level errors, more consistent use of tense, and better vocabulary choices as the term progresses. The students also expose their thinking and reasoning about science in a way that I would never see on multiple choice or fill-in-the-blank test.

While I strongly believe in the writing centered core at the heart of the physical science course, I am more than reticent to advocate that other laboratory science instructors trod the path I have taken. I essentially give up every weekend to mark essays, a fairly atypical schedule for a science instructor. No complaints, I designed the course, I created the load for myself.

That is where the capabilities that a service such as Turnitin.com comes into play. The site provides the ability to rapidly mark-up electronically submitted copy while simultaneously supporting marking the document against a custom designed rubric. Instructors report tremendous gains in efficiency with such a system. The system also checks text for uncited material taken from elsewhere and flags this material.

My vision, however, is not of a single software package. Without other pieces, writing across the curriculum would remain an elusive dream. Turnitin.com provides for electronic return to the student with links from the marked-up issues to on-line documents that explain the nature of the error to the student. The student can then make the necessary changes and turn it back in to the instructor. Turnitin.com is designed for an environment in which both the instructor and the student have continuous connectivity to a network and ongoing access to a computer. In other words, the system really only works if every student has a laptop of their own and a campus-wide wireless network is in place and student accessible.

Envisioning the academic future of information system technologies is familiar ground for me. In 1993 I wrote a vision document for the future of the LRC. In 1993 the LRC had no computers. I envisioned a mix of shelves and computers operating off of a CD-ROM collection. In 1993 there was no off-island connectivity, and though I was already an early adopter I had not yet grasped the potential academic promise that a global network such as the Internet would one day fulfill.

I did the first informal studies on the potential academic impact of computing technologies in student laboratories at the college. I would later note that a computer is like a microscope. Both are tools. Microscopes do not improve learning per se. Microscopes fundamentally change what can be taught, what can be directly apprehended by a student. Microscopes change the curricular landscape of the biological and life sciences. Computers too have a greater impact on changing what is learned rather than a direct impact on learning. In the distant past geography students might have memorized countries and capitals from a printed atlas. Today students can learn the ethnography of a nation, listen to the music of a place, and see videos of events there through a geographic information portal such as Google Earth.

The college has a superb information technology team that pushes our technical capacities steadily forward. In terms of hardware - of servers, routers, cables, and networks - the IT team is simply the best in this nation. IT has driven forward into wireless networks, VOIP telephony, and support for SMART board technologies. Operating on an island run on a couple diesel generators with only satellite connectivity to the world is challenging, and the IT team has risen to that challenge.

The IT division, however, is placed within the command and control chain that includes facilities, maintenance, the cafeteria, and business office. IT is seen as a provider of services in support of learning. IT has no mission to envision the academic future and then take the college to that place. Nor should IT have such a mission, their job would be to support the academic direction that the college chooses to take. The content area experts - the faculty - would be the drivers of an academic technology plan.

As an early adopter, I am aware of some of the future IT plans at the college in terms of hardware capabilities. I am, however, unaware of any academic information systems plan. There might be one, but if so then I am unaware of the plan other than the planned hiring of a distance education coordinator to support faculty who might offer courses using distance education models. Here I am speaking of a five to ten year plan that paints a picture of what the college will look like from an academic IT standpoint.

The academic plan would include statements such as "Students will supported in their acquisition of English writing skills through system-wide uses of software such as Turnitin.com. Each course will have a course home page with, at a minimum, the course outline. While Microsoft Word, Excel and OpenOffice.org will be supported on desktops, Google docs will be the recommended student office software package will be Google docs in order to provide for security against loss of documents for students."

Other statements would characterize faculty capacities, "Within ten years a half of the faculty will have web sites that support learning in their courses. The college will provide support for both traditional static web page based course web sites and Moodle based courses. The capacity of faculty to utilize these tools will be built up through faculty development, training, and support."

Along with the above statements would be the hardware specifications necessary to support the software future envisioned, "Every student will have a computing device, potentially a laptop computer, which is connected to the campus network by a high-speed wireless network. By 2015 all campuses will have sufficient off-island bandwidth to functionally support the use of Google docs by students. By 2016 all 100 level and above writing courses will have paperless workflows."

The above statements are just examples of the sort of material that I think and suspect is likely missing from whatever technology plan we might have - I am not purporting that the above is the academic technology plan.

The plan I am advocating be developed cannot be developed by the IT division, academic content area knowledge is not their expertise. The academic technology plan has to be generated by the faculty. And yet here is a true catch-22. Except for newer faculty, many faculty have been out here so long that they are unaware of software developments in their field. Many faculty may not be able to make recommendations on what to adopt and train faculty to use because there is a peculiar isolation to teaching in Micronesia.

Writing such plans can be scary. I knew in 1993 that with sufficient funding, my vision for the LRC could be realized. I did not know, however, whether my vision would be supportive of learning, would prove to be appropriate. Ultimately the computers were placed in the library, but events overtook the original plan. The Internet rapidly became a vastly larger information resource than any CD-ROM collection. Fortunately the plan had the necessary hardware already in place to support the shift to providing Internet access.

I am not faulting anyone, and I apologize if anyone feels slighted. I spent the years 1996 to 2000 dreaming, planning, acquiring, and deploying technology for the math science division at the college. My sense is that I have pretty much the same set of tech tools inside the classroom that I had in 2000, with the notable exception this past week of a SMART board that replaced a large screen monitor which had turned ten years old just last Thursday. The monitor first failed on 16 January 2008 but "recovered" a couple days later. A second failure that September had me trying to get IT to buy a plasma screen on island for my next class that was 48 hours away. The monitor recovered yet again, but was clearly signaling that the end was near. That said, my students have little additional in the way of learning technology at their disposal than their predecessors had nine years earlier.

None of the above has gotten a single of my awaiting essays marked. Time to haul out my set of different colored pens and get marking.

Saturday, March 28, 2009

Photographic evidence of learning and the cloud

I have used photographic evidence along with other measures to provide assessment insight into SC 130 Physical science.

Learning in the field of physical science, scientific understanding, is constructed out of interactions among a peer group using tools that measure the physical world as guided by the structures designed by the instructor. I would argue that this image provides evidence that this is occurring in the course. Indirect evidence, but when triangulated with laboratory reports and course tests, valuable evidence.

I think the photographic evidence is even more relevant when we look at articulation of courses via student learning outcomes. A college can produce student learning outcome outlines, but how to prove to other colleges that the student's are actually learning the material? That the course is "real"? Item analysis of test items aligned to the outline and sample student lab reports are part of the "picture" in physical science, but photographic evidence is intuitively powerful for people. I argue that one can "see" learning happening in this image and the images that follow.

I use photographic evidence in both my ethnobotany and my physical science course.

Of late I have been moving these pictures into the cloud - specifically onto this very blog. Pages such as photo pages from a recent simple optics lab and a speed of sound lab
are now simply a blogged.

Links integrated into locally held web pages provide the "glue" that webs together the network of pages on different servers.

For photographic pages my key tools include the Graphic Image Manipulation Program for balancing, cropping, resizing, and compression control. To catalog and post images I use Picasa. Picasa includes integration with Blogger, providing both cataloging and posting services.

Blogging the photographic web pages has effectively forced me to include more text, better descriptions, and simultaneously the Picasa "four picture" post limit reduces the number of images I post. I am forced to be choosier, with the result being a better edited, more tightly and carefully constructed photo evidence page.

Thursday, March 26, 2009

SMART Board

Day one with the SMART Technologies SMART Board 600i interactive whiteboard system in the mathematics and science computer laboratory at the College of Micronesia-FSM Palikir site. The SMART Board replaces the decade old 36" Destination large screen monitor which had showed signs of impending failure on 20 January 2008 and again on 29 September 2008.

Students in MS 150 Statistics were entertained by an arm waving dance by their professor in front of the interactive white board.

An OpenOffice.org Calc spreadsheet can be seen on the screen above.

The special "markers" draw in computer ink, the results can be saved as a portable network graphic. The above scrawl was merely a trial run. Clearly I could now also open professional looking t-distributions.
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Tuesday, March 24, 2009

An office with a view of the outside world

My brilliant friend rigged a mirror on top of his cubicle so that he can see out a window in the office in which he works. I too work in what was a cubicle, but the furniture that created the cubicles has been moved around. There used to be fabric covered panels that separated cubicles, but they disappeared at some point.

The view out my window is in the direction of a small tropical mountain, really a large hill, in Palikir. The pine is a Norfolk Island pine - Araucaria heterophylla.

I opted to use a flash in order to properly expose the drapes my wife made.
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Monday, March 23, 2009

Lelu water

Kosrae is now bottling and exporting water under the Lelú name. Certainly the rains of Kosrae have to be some of the cleanest on the planet just based on oceanic remoteness. The product is unusual in one respect - a decision was made to try to carve out a market niche using a distinctive bottle and labeling.

The water is named for the municipality of Lelu, spelled on the website as Lelú but the bottle uses a character more akin to a ǔ. The current alphabet in use in Kosrae intentionally eschews accent marks in order to make the language more "keyboard" friendly. The letters "c" and "h" used as a marker to change the tone or length of a vowel, as in "Puhsra sasuc ke sipacl sasuc ke kahs Kosrae ma orekmakihn lacta c ac h ke kahs paclahng in tuh welah ac tuhkuh tukun oacna sie faol in tuh oracluh sie kahs."

Certainly if you are looking to put water on a table where appearances will count, Lelú water would be a good choice.

Friday, March 20, 2009

Dien on a Thursday evening

2009 is the year of the bottle, cups are a thing of the past. The small bottles hold the equivalent of a plastic cup and can be consumed in market or as take-out. Dien remains a good place to be at sunset.

The brochure on the table is a Clidemia hirta brochure.
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SC/SS 115 Ethnobotany pulls Clidemia hirta

SC/SS 115 Ethnobotany spent a class period pulling the recently identified invasive species Clidemia hirta. Joining the class were Richard Womack, Konrad Englberger, BJ, and Dickson. Rich teaches science methods, Dickson is a student in the class. Konrad directs Plant Protection Micronesia and provided positive identification of the pest plant. BJ works for Conservation Society of Pohnpei which is coordinating the effort to map and eradicate Clidemia hirta.

Rich and Ruth look over a sprawling patch of Clidemia hirta (Koster's curse).

Konrad joins in the pulling.

Clidemia hirta is a melastome. A local melastome, Melastoma bathicum var. marianum (pisetikimei), has a larger purple flower, a thicker and smoother leaf, and does not form the sprawling bramble that C. hirta forms. C. hirta has a distinctive leaf and a small white flower.

Maybeleen and Marla pull a virtual carpet of C. hirta.

Simple linear regression in optics

Physical science laboratory ten continued the emphasis on seeking linear mathematical relationships between two variables. In the first part of this two part laboratory students measured the object and image distance for a bolt as seen in a mirror. Chersea holds the mirror while Breechlyn adjusts a second bolt behind the mirror. The bolt behind the mirror is positioned at the imaginary location of the image.

Yasko uses a protractor to ensure that the mirror is perpendicular to the table.

Elsieleen, Zillafaith, and Arleen use a pair of meter sticks to improve their accuracy.

In the second part students measured the apparent depth (image depth) for a coin underwater versus the actual depth (object depth). For small angles away from the vertical, the slope should be close to the index of refraction for the coin. Simson and Welianter work with a graduated cylinder which naturally constrains the viewing angle.

Wednesday, March 18, 2009

Material culture: what was traditionally worn

If we taught in the clothing that Pohnpeians wore in the past, this would be a common site on campus. In SC/SS 115 Ethnobotany, in part to drive home the extent of the change and loss of Micronesian material culture, I come to one class dressed in a Pohnpeian koahl. This always attracts a lot of attention, and that is the point. Other facets of plant culture do not attract the attention that wearing a koahl attracts. In their dress, most of our students resemble college students elsewhere.
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Sunday, March 15, 2009

Running in Stumptown

There are no junk running kilometers at 30° Celsius, 80% humidity, under a direct equinoxal tropical sun. Friday evening I put in ten kilometers during a sixty-two minute run on the new END Stumptown 12 oz. The shoe was designed from blank sheet to minimize the use of materials and in what materials are used, to maximize the use of recycled materials.

My running shoes all die the same death: delamination of the dozens of colorfully fancy layers of rubber and plastic in the outsole. The Runner's Footprint, an article in Runner's World, that the Environmentally Neutral Design Stumptown had fewer parts than other running shoes. Fewer parts should mean fewer small pieces that will delaminate.

As an overpronator who enjoyed the ASICS Gel MC+ series despite their mass, I was reticent to move into a shoe which was not specifically designed for an archless overpronator. In 1996 a shift to a non-motion control shoe coincided with if not contributed to plantar's faciitus that side lined my running during fall 1996. Changing shoes is something I do with trepidation. Just learning the right size to order for a new brand is daunting given the remote location of Pohnpei. Fortunately a size 11 Stumptown fits me as well size 11 Mizuno and ASICS shoes.

During the Friday evening run I felt well supported and cushioned. I noted no hot spots or abrasion. I once had a pair of ASICS 2080's that as they aged they generated hot spots under my arch that eventually led to blisters. On Pohnpei keeping one's feet from overheating is a challenge.

Saturday I took an evening off and enjoyed four strong cups at Nan Kapw in Kitti. Feeling a bit slow on Sunday, I ran 9.15 kilometers in a leisurely hour. Although slow, the Stumptown's felt surprisingly light throughout the run. With my form slightly uncoordinated and a bit footfall heavy, the Stumptown's still felt like they were providing sufficient cushioning.

Only six months will tell if the midsole can maintain its cushion on hot roads in Pacific tropical heat and humidity. For now I have what appears to be a fast, light, and sufficiently supportive shoe. The shoe is simple in design, and that is promising.

For the first time in six months I again have two shoes to switch between - essential given the rainy conditions that prevail on Pohnpei. I also have a shoe that is environmentally green in design and construction.

Friday, March 13, 2009

Environmentally neutral design

How well will an Environmentally Neutral Design Stumptown 12oz running shoe hold up in 100% saturating humidity and equatorial rain? I am about to find out.

First impression - light. Too light for an over-pronator who typically wears motion control shoes such as the Mizuno Wave Renegade 4 or ASICS Gel Evolution. The number one cause of shoe death out here: delamination of the multi-layer outsoles due to heat, humidity, and immersion in tropical rain.

On my budget shoes have to last two to three years. The END Stumptown shoes will be an alternate pair to the Renegade 4 shoes I bought in July 2008. Although I try to have two pairs in case of the sudden failure of a pair, since December and the delamination of the Mizuno Wave Renegade 3 shoes, I have been on a single pair. I tried glues of all kinds, to no avail in this climate.
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Thursday, March 12, 2009

Speed of Sound

Students in physical science lab seven measured the speed of sound by synchronizing the clapping of boards with the echo off of a building. Timing a set of multiple claps and measuring the distance the sound traveled out and back permits determinations of the speed of sound.

Breechlyn measures the "echo flight distance."

Josita times, Divine Grace counts, Georgie claps. Other students sitting across the road used hand signals to help the clapper know if they were in synch or not.

Confering on the results.
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Tuesday, March 10, 2009

Ethnobotany of Pohnpei released

Ethnobotany of Pohnpei was released with Iso Nahnken en Nett presiding over the release ceremony. The book is a comprehensive look at the ethnobotany of Pohnpei. Twelve years in the making, the book is the culmination of a joint effort by the traditional leadership of Pohnpei, the New York Botanic Garden, Conservation Society of Pohnpei, and many other supporting partners such as The National Tropical Botanic Garden, The Nature Conservancy, the College of Micronesia-FSM and many more.

Speakers included Bill Raynor (seen above), Patterson Shed, Dr. David Lorence, Dr. Michael Balick, Wayne Law, Adelino Lorens, and Iso Nahnkehn en Nett.

Dr. Michael Balick of the New York Botanic Garden had the original vision to create the book. Iso Nahnken awarded him a high title in Nett in recognition of the work done.

Director of Science at the National Tropical Botanic Garden, Dr. David Lorence, along with a team of collectors including Steve Perlman, has identified the presence of Clidemia hirta, an aggressive Melastomaceae weed. Clidemia hirta is in the same family as our local melastome, pisetikmei (Melastoma malabathicum var. marianum).

On the left is pisetikmei, on the right is a leaf from Clidemia hirta. C. hirta grows into a mass of impenetrable vegetation with woody stems. The plant appears to "crawl" along the ground.

Above is the flower of pisetikmei, a plant that is a native of Pohnpei. C. hirta has a small, white flower. Images of an unidentified melastome from fall 2007 now appear to be C. hirta.

An orchid in bloom in the unofficial orchid collection.
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Saturday, March 7, 2009

Two hundred minutes: one month after pedometers

February 2008 brought me pedometers that would withstand the rigors of tropical running and tallied correctly while running. March 2008 showed that my daily average was 8500 steps. In April, however, my running became increasingly sporadic and my average fell to 7800 steps per day.

On the eighteenth of May my cumulative daily average fell below 8000 for the first time since I began daily records on 25 February. That day also saw a record low of 657 steps for the whole of a Sunday, and capped off a dismal month in which I ran only six times.

Alarmed that I was headed the wrong way from the recommended 10000 steps per day, and that my running was in a state of free fall collapse, I pushed myself out the door 21 times in the next 30 days, averaging 11300 steps per day for the same period.

The pedometer had been an important motivator - seeing the numbers collapse, and the specific trigger of the fall below 7000 for my cumulative daily average, had gotten me out the door. I was running again. With the announcement in June of a half-marathon to be held in July, I had an additional motivation to get back into shape. This is one intended health impact of pedometers, as a motivator.

During the torrid days of July and August my cumulative average daily steps would rise to 9000 and remain near 9000. Into the fall term, with regular running, my average would remain around 9000. During this time pedometers would become unusable, primarily due to the breakage of their hinge. I had spare pedometers and would switch when another became a casualty of the daily wear and tear.

In October a health check saw my cholesterol up from the previous year, providing more wood for the exercise fire.

By January 2000 I was on my last pedometer, a device that had become an important monitor and motivator for my level of exercise. How to maintain a 10000 step level without a pedometer? Post-pedometer the only sure measure I had was time - duration of running. While I have distances for many "routes" I do not have distances for all possible running routes.

Over a period of few days I crunched numbers, rolled up averages, and calculated linear regressions. Variability was the complication. I would run, think up another metric, and then recalculate. Eventually I found stability and correlation in a number I called the "three month decay of the seven day average time." This led to the determination that maintaining my current level of steps - in the 9500 to 10000 range - required a minimum of 200 minutes of running over any seven day period. In other words, 200 minutes of running per week.

The metric is easy to measure and to track. In daily terms 200 minutes means at least 29 minutes of running a day, or 34 minutes for six days of running and a day of rest. That is about five kilometers a day.

On the fifth of February 2009 the last pedometer died. I had tracked my steps for the previous 342 out of 347 days. Would time be as motivating as the hard numbers of a pedometer?

A month later and the tentative answer is "yes." Using a spreadsheet to track time, as I had tracked steps, I find myself motivated to hold that 200 minute base. In fact, maintaining the 200 minute base is almost more motivational than the pedometer. Knowing that I need 29 minutes per day, 34 if I miss a day, and 40 if I miss two days, is a lot easier to comprehend and think about than steps. I can pick a running route that matches the time I need to stay above 200 minutes.

I did have a cold that coupled up with a busy week that took me below 200 minutes. I did not try to go out and make up the large deficit that had accumulated, just pushed myself out the door to get 29 minutes, knowing that in a few days I would be back on track.

I am now enamored of minutes of exercise. Pedometers will always be a device prone to failure and breakage. As a tool for health, a pedometer might be a good way to start someone exercising. Keeping them exercising beyond the pedometer is the challenge. Maybe minutes of time is a way to transition to a more durable measure.

While 200 minutes is based on numbers unique to me, current recommendations of at least 150 minutes of vigorous-intensity aerobic activity, with more being better, provide support for my calculations.

Think about making a weekly total exercise time a goal for you. Be realistic. First determine your current number of weekly minutes of exercise. Based on how satisfied you are with your current fitness, either maintain your current number or make a small adjustment. Track your exercise time - keep a log. Make notes on what exercise you did and how you felt during and afterwards. You will learn something, and you may find a new motivation, a new reason to push yourself out the door and onto the road or into the gym.

Monday, March 2, 2009

Statistics: Item analysis of spring 2009 midterm

Overall performance on the MS 150 Statistics midterm was strong with a course wide average success rate on the questions of 72%. That is, 57 students correctly answered 72% of the questions posed. The individual item analysis indicated strength in basic statistics, frequency tables, and calculating the slope and intercept for two variable data.

The students had more difficulty when called to make an inference, such as determining whether a z-value was an extraordinary z-value or whether a two-variable relationship was linear or non-linear.

qn Test two spring 2009 corr perc
1 level of measurement 43 0.75
2 sample size 56 0.98
3 minimum 57 1.00
4 maximum 57 1.00
5 range 57 1.00
6 midrange 56 0.98
7 mode 56 0.98
8 median 57 1.00
9 mean 48 0.84
10 standard deviation 57 1.00
11 coefficient of variation 48 0.84
12 width 50 0.88
13 frequency table 42 0.74
14 frequency histogram 30 0.53
15 shape of histogram 36 0.63
16 probability 15 0.26
17 z-score 16 0.28
18 inference 16 0.28
19 inference 13 0.23
20 slope 51 0.89
21 intercept 50 0.88
22 predict y given x 38 0.67
23 predict x given y 37 0.65
24 nature of relation 32 0.56
25 direction of relation 47 0.82
26 correlation r 42 0.74
27 strength of relation 43 0.75
28 coef determination 43 0.75
29 percent variation acct 23 0.40
30 inference 11 0.19

The final question, number 30, asked the students whether linearly projected y-values beyond the domain of the x-values would be valid. Given that the system was non-linear, a linear projection beyond the domain would not yield valid values. All but 11 students missed this inference.

The students excel at making basic single step calculations and do well at well-defined procedures. The students have difficulty when the task requires thinking about the data, analyzing patterns, and making judgment calls based on the data. Finding ways to help the students "step back" from the numbers and make decisions about overall patterns remains a challenge.

The Night Before

A sad Saturday evening in Nahnpohnmal awaiting the return of the body of a loved one who died abroad. Sinser Anson Salvador passed away in the states. As is tradition, the family gathered for sakau and the comfort of each other's presence.
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Runners

At the Rotary 5k on Saturday my eldest was the first 12-and-under across the finish line in about 36 minutes. The coconut drinker rolled in about ten minutes later at about 47 minutes. Thursday evening caused some remaining lack of coordination, coupled with a strong cross-wind I dropped my tennis balls three times. Despite this I finished in 28:33 on the upper route that takes the runners up through Dolihner.

The Rotary club run included trophies:

Sunset near a stone

Thursday evening sitting with friends along a road in Dien, Kitti.

Peering across the end of the table.

Sunset in Kitti by the side of the road is a good place to be.

Earth Girth

For laboratory seven, the physical science students set off with a surveyor's wheel and global positioning satellite receivers to measure the number of meters per minute along the 6° 54.551 north latitude line. The students walked due west for about 700 meters, covering 0.358 minutes of longitude. Knowing the number of minutes in a degree, and degrees in a circle, the class could calculate the circumference of the earth at 6° 54.551 north.

The GPS units provided measures in both minutes and meters, which were checked against the surveyor's wheel measurement. The class later also used Google Earth and the ruler capability in Google Earth to make a third measure of the distance. The surveyor's wheel indicated that the distance was 688 meters. The four GPS units had an average of 712 meters. The Google Earth ruler indicated 658 meters.

Given that the terrain was fairly flat, and that a small diversion around the corner of the gym may have added a couple meters, the surveyor's wheel should be the most accurate measure used. That suggests that Google Earth might underestimate by a small amount while the GPS units appear to overestimate the linear distance on the ground.

Students play ultimate in their exercise sport science class. For the students here this is an entirely new sport.

Spathoglottis gracilis.
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