22nd March
"You should be teaching the f---ing class, Andrew," my Chemistry teacher told me when I was seventeen. "You'd do a better f---ing job at it than I do."On that distant Friday night in the Scottish Highlands - a place where the nightlife is so limited that teachers are forced to go and get drunk in the same places as their students - I never imagined that I would get the chance to prove whether or not he was right. Much as I love colours and smells and explosions, a career of helping bored students get to grips with a subject that most of them loathe wasn't what I'd dreamed of. However, after Mr Noel's retirement, Ranwadi needed somebody to teach its senior Chemistry classes. Since I was the only person around with a science degree (albeit in a different science) - and the only science teacher who didn't blankly refuse to touch the subject - I was given the job. Ranwadi's senior science lab was built less than two years ago with Australian aid money, yet already looks dingy and old-fashioned. A hibiscus hedge along one side of the building blocks out light and harbours mosquitoes, and on the other side an overhanging roof obscures what would otherwise be a beautiful view of the vine-draped ridge across the valley from the school. Along the wooden panels where the walls meet the roof are rows of government posters carrying important messages in Vanuatu's three national languages ("Don't litter in our beautiful Pacific. Respektem korel rif blong Vanuatu. Sauvons nous tortues de l'extinction"). Elsewhere the walls are made of plain, painted blocks and resist attempts to decorate them: you can't put pins into solid cement, and sellotape and blu-tack quickly lose their stickiness in tropical conditions. On blustery days, draughts through the windows make any experiment involving flames nearly impossible. Experiments requiring mains electricity have to be done in the evenings, since there is usually no power during the day, which is awkward since all the lights in the lab are broken. The shed housing the school's electricity generator is right next door to the lab, and on the rare occasions when somebody does decide to switch on the power during the day it fills the room with noise. At the start of term several of the water taps in the sinks along the sides of the room weren't working. The water supply mysteriously restarted one lunchtime when nobody was around, and a tap that had inadvertently been left on flooded the room. Next door to the lab is a gloomy store room full of glassware and chemicals. By Vanuatu standards Ranwadi's science department is actually very well equipped, partly due to Mr Noel's efforts in bringing science materials from New Zealand and partly thanks to a recent shipment of supplies from AusAID. However, the overworked Mr Noel seldom had time to clean and tidy the storeroom, and nobody else ever bothered. Many pieces of equipment were buried in dusty, unlabelled boxes (some of them, I suspected, had been left unlabelled on purpose to discourage theft), and dirty bottles and test tubes left over from long-past experiments mouldered on the benches. Most of the old glassware was covered with a grey film of dirt, and cobwebs clung to the ceiling. One large spider, in a remarkable feat of engineering, had managed to construct a web that spanned the entire room. Any chemical with a tendency to degrade in warm conditions had long since done so, and those with the ability to absorb water from the air had turned to slush in the humidity. The salt in the tub marked 'sodium chloride' looked as if it had been scraped from a winter road. Worst of all, there were several bottles and flasks of liquid that had no label, or that looked and smelled as if they weren't what the label claimed them to be. What was I supposed to do with these mystery chemicals? Were they corrosive? Flammable? Poisonous? I had no idea. I was reluctant to simply leave them lying around the lab, but nor did I want to pour them down the sink, from which they would probably drain straight into the local stream. In the end I put them all in a tray marked "Unknown chemicals" with a note to the students and the other science teachers: "If you made these or you know what they are, please label them or dispose of them." I knew that nobody would touch them. My new Year 12 Chemistry class, who had already studied the subject for a year, were beginning a topic on Organic Chemistry. "Living things are made of carbon compounds," I told them, and proved the point by plucking a flower from the bushes outside and dropping it into neat sulphuric acid; the flower disintegrated into a black carbon sludge. The students were impressed, especially when I told them that the same thing would probably happen to my finger if I dipped it into the acid. The Year 11s were just beginning their course, and were tackling the boring-but-necessary topic that forms the first chapter of every chemistry book: the structure of atoms. "You can knock electrons off their atoms," I explained, rubbing a balloon against my shirt. I held the balloon up to my hair, expecting a tickling of static electricity. Nothing happened. The electricity had been sapped away by the humidity in the air. I would have to try the demonstration again in the dry season. After a few weeks, a new science teacher arrived at Ranwadi, and Year 11 Chemistry was taken off my hands. Instead - and in spite of making it as obvious as I could that I wanted nothing to do with Year 13s this year - I was given a Year 13 Chemistry class to supervise. My class turned out to consist of one student. Most Ni-Vanuatu youngsters go through a phase of being exceptionally shy. They are particularly shy around white people, teachers, and members of the opposite sex. A white male teacher giving one-on-one tuition to a local girl was therefore going to be an awkward situation. Fortunately, the girl turned out to be a keen student (perhaps she had picked up on the fact that I would gladly drop the class given a good excuse), and the first few lessons went surprisingly well. The Year 13 courses are organised by the University of the South Pacific headquarters in Fiji, and comprise a fixed weekly programme of practical activities, individual study, and periodic assessments which are sent to Fiji for marking. The courses make virtually no allowance for the fact that the science facilities at many schools in the South Pacific are basic, nor for the fact that most students in the region do not speak English as a first language. As in last term's Year 13 classes, much of my time was spent explaining in simple terms what the dense, university-style language in the course materials was trying to convey. Matters weren't helped by the fact that the Year 13s at Ranwadi, in typical Pentecost style, were five weeks late in starting their courses. "It says here that we should have a big exam next week," my Chemistry student pointed out to me during her second tutorial. "But I haven't had a chance to study any of the material for it yet." (She didn't say this in quite so many words, but through whispered half-sentences and by pointing at her Course Guide she managed to communicate what she meant.) "Can the exam be postponed?" I asked the teacher responsible for organising the Year 13 courses. I didn't get a straight answer. I secretly hoped that there would another military coup in Fiji. Nothing nasty, of course, just something that would disrupt the University of the South Pacific enough to set back the Year 13s' assessments by a few weeks and give the poor students a chance to catch up.
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