Foreign Perspectives

Archive for the ‘Chemistry’ Category

If you read the comments before you sign up for S377, it sounds like an impossible course to do and one that just about everyone will fail.

Real stats tell a different story. Yes, it is slightly harder than most OU courses but only slightly going by the stats which show a drop out rate about 5% higher than average and a pass rate about 5% lower.

Mind you, you do need to be quite determined not to drop out as nothing makes much sense as you go through and it’s only at revision time that it all comes together. So, in my case the expected resit turned out not to be required by a very safe margin and I ended up with just shy of a distinction!

That’s caused a minor issue as it now appears that I may be able to improve my overall degree classification if I get the finger out with the final two modules.

Looking at before I signed up for it, it looked like book 1 was chemistry and book 2 was biology. That’s what it is on paper but in reality “book 2” is the main book and the chemistry is slotted in as needed along the way with the final chunky section a medical science one that seems to be tying all the other bits together in a fashion.

As with all the modern science courses there’s a lot of it online, mostly for economic reasons rather than educational ones. They could put that final section of the course on a DVD (or at least make it easily downloadable) but they don’t. You can download it but you need to go through the online study guide and online modules to download each of the videos and texts contained within them. That makes it a bit of a nuisance to work through unless you either read ahead and download everything in advance or have Internet and DVD access available everywhere you study.

It fits in really well with S377 really well, so much so that when I’m reading the book for one I sometimes forget which of the two I’m reading.

One downside of it that I’ve just discovered is that it seems I won’t be able to count it in any degree unless I can slot it into one by 2016 as the new-style OU degrees don’t acknowledge courses that aren’t 30 or 60 points. So, rather than lose the points, I’m having to change the courses I was meaning to do over the next couple of years with the running order for my “miscellaneous interesting courses” degree looks like being S346 Drug design this October, A326 Empire: 1492-1975 the following October and finishing with AA318 Art of the 20th Century in October 2015.

It’s billed as the science of the senses and that’s what’s behind it all though the emphasis on the various senses changes as you move through the course.

Each of the study guides starts with a pointer to what you’ll need to know to understand each section of the course. For instance, for vision you need to know the physics behind how light works as well as bits of biology to understand how the receptors in the eye work and some psychology to understand how the image on your retina is interpreted as a scene. For taste and smell you need quite a bit of chemistry to understand what all the chemicals that they discuss are. Overall, it’s mainly biology and psychology that you need but at times there’s quite a bit of physics and chemistry so, depending on your scientific background, you’ll find that the difficulty in following the course varies quite a bit along the way.

One consistent hassle is that the assignments are far from clear in what they’re asking for. I basically muddled along never being able to predict what my results would be with anything like the accuracy that I usually can. That’s not just me either as a number of comments on the course mention that aspect of the course. I’m not sure why that should be but perhaps it’s an aspect of it being an inter-disciplinary course and maybe they should be more explicit about saying that “the question is on biology” or something like that although even that would be quite difficult as a number of the questions run across more than one discipline.

It’s quite a large course though you wouldn’t necessarily think that from the volume of books that it’s made up from. Where the problem arises from is that there’s a fair chunk of stuff on the DVD and the reader is very, very variable in readability as it’s written by lots of different authors. The study guide points out a number of chapters in it that are particularly difficult. It’s not really that clear why the reader is there as most of the time it covers much the same ground as you’d have already read in the course text, sometimes in more detail but sometimes not. As became clear in my revision, it’s not particularly well integrated with the rest of the course.

Overall, I have mixed feelings about the course. It was in a little more detail than I’d covered in previous biology courses but I didn’t feel that it added an awful lot to that existing knowledge so it didn’t come across as fascinating as I’d expected it would be. For instance, prerequisite courses had already covered vision in almost the same amount of detail and proprioception which was new to me wasn’t really covered in a great deal of detail. On the whole, I wouldn’t really recommend it if you’ve done human biology courses before as there’s not an awful lot of truly new material.

Finishing the Signals & Perception (SD329) course a few weeks felt very much like throwing out the anchor to stop as the exam on the 15th marked the final day of my over-study period that started last October. The original plan had been that it would be a fairly full year but things rapidly got out of hand as the 12 months progressed which made it something of a hard slog. A very interesting slog mind you but hard going none-the-less.

So I now find myself all of a sudden just doing a single 20 point course. Well, to be fair, I have some pre-reading for the upcoming molecular & cell biology course (S377) to do over the next couple of months but even so it’s a radical change of pace from what was pretty much a whole year of more than 120 simultaneous points throughout with 180 points for fairly significant periods of time. The rapid change of pace meant that I ended up doing 3 weeks worth of the 20 pointer in four days so I had to stop work on it for a while as another week at that pace would have seen me up to the second assignment which is just too far ahead.

What it’s also let me do is to start catching up on things that I just didn’t have any time to do over the last year or so. It’ll take me another month or two to get back to “normal” but at least I’m heading in the right direction now. One of those “normal” things is, of course, the writing of the blog was has been rather neglected over the last year and I’ll be aiming to get back to my daily entries gradually.

Signals & Perception was a really interesting course but, for me, it wasn’t as satisfying as it might have been as I ended up having to slot it in between a whole lot of other stuff which made it feel like a number of separate courses as it was very much a stop-go experience for me courtesy of me ending up with a little too many separate courses during the year.

It wasn’t meant to be that way but starting a new job in April was something that I’d not allowed for and in particular I’d not allowed for it roughly equating to another 60 point course. Net effect was that April to October was a bit of a nightmare time-wise for everything (not counting real life either!). Thankfully, the exam yesterday marks the end of that period and I notionally have a week off before the next course starts and it’s only a 20 pointer too.

Although an overly busy time, it’s been a really interesting roller-coaster of a year. Last October saw me starting S205, the main chemistry course, with a short autism course (SK124) kicking in a month later. SD329 weighed in in February and was going fine ’til the job offer came through in March. Early June disappeared in preparation for the S205 exam and the second half of June went with the pre-course assignments for the biology (SXR376) and chemistry (SXR344) summer schools which took place in the first couple of weeks of July. Coming back from them, it was straight into the assignment for SD329 before spending most of August on the assignments for the summer schools. In September it was catch-up with SD329 and then the final assignment for it before diving into revision for the exam. Not a recommended approach but, passes permitting, it means that I’m over the hump of the degree and have only two 30 point courses and a 10 pointer to complete it by 2014.

I was a bit brain-dead last night but managed to have a first proper look at what’s coming up in the Metals & Life (S347) course. First glance, it appeared like a lot of reading but it’s about 60 pages over three weeks, not the one week that I’d thought initially. Also, it seems to be run like a biology course which dives into some chemistry along the way so, hopefully, not too bad. I’m not overly keen on having the exam at the end of April though as that’ll be a couple of months into S377 which has a bit of a reputation of being very difficult.

Not to be forgotten is some preparatory reading for S377 which needs done between now and Christmas. That’s around 250 pages from S204 which we didn’t need to cover during S204 itself but which is required reading for S377.

I thought that the SD329 exam wasn’t too bad. With interdisciplinary courses, there’s what appears to be a totally frightening amount of information of differing types to go over and starting the revision is scary. Once I got well into it, things seemed to come together though and I ended up with 5 or 6 quite good answers out of the 8 short questions and only one pretty poor one. For the longer questions I think I’ve two fairly good ones and one reasonable out of the three. More than enough to pass I think but the overall result could be anywhere from 50 to 70 as I was dreadful at estimating my assignment marks during the course.