Expert Insights

Topic

Strategy

I find it [teaching] enjoyable, and I think that if you’re enjoying teaching something then your passion and desire and enjoyment gets transmitted to the students. It’s not necessarily easy to teach, but it’s satisfying and generally we want to inspire them to increase their level of intrinsic motivation to want to continue to study chemistry.	The influence has been to stand back and let the students do the learning, rather than for the teacher to be barnstorming them with teaching.
Difficulties are having to relearn something that they thought was true from school and not understanding the evolving nature of science. New knowledge is easier to assimilate than changing old knowledge.	I think it’s really important that people mark assessments. Mark, and see what the students actually end up knowing. Because they can pretend to themselves that students have understood everything, but if they actually have to mark the exam papers, or the quizzes, or whatever it is, they actually are confronted with the students actual knowledge. I think that’s really influential. The second semester of teaching, when you think you’ve explained things well, and then 90% of the class have not got it, then it’s not the students fault at that point, it’s probably your fault. So I think that assessment is really important. Not only for the students, but also for the marker. I think you can learn a lot from marking.
At the start of every class my standard thing was ‘can you see me, can you hear me, can you see the slide?’ I would always look up the back for someone to put their hand up and always I would never talk to the front row. I’d always talk middle and back row and if someone was talking in the back row I’d pick them up and say ‘hey you, be quiet’ and then they know that I’ve seen them. So you’ve got to focus on the whole class not just the people at the front - the people at the back as well. Because sometimes smart people sit at the back as well, not just the dummies who want to get out. You’ve got to make sure you know everyone in the class. And the surprising thing is that most kids sit in the same place every lecture. So you can actually recognise where they are and who they are. You don’t know their names but there’s a pattern in the way they sit. You’ve just got to be aware of that. So the trick is to embrace the whole class with your - you know physically, just with your eyes and and the way you talk. You know, when you wave your hands, wave it to the back row. Make sure they’re involved.	But if you’re honest, they’ll be honest right. And I think that’s really important. If you b*gger something up and you really do make a blue or even a little blue, tell them. Say ‘oh look this was wrong, you know this is what it should be’. So that’s important - to be honest, to be upfront. Recognise that we’re dealing, in 2015 or 2014, we’re dealing with OP1 to maybe 14. Recognise the breadth of that class. Don’t teach the top, don’t teach the bottom, teach somewhere in the middle, but try to make sure that you don’t lose the top ones and lose the bottom ones, which is very difficult to do and you only do it with experience.
I think what I try to get students to see is that we use models and you use a model, while it works. Then when it doesn’t work you develop a more sophisticated model, and what we’re doing now is developing a more sophisticated model of the structure of the atom, of bonding between atoms. So they find that difficult, the fact that you’re putting aside the model you used previously and developing a more sophisticated one. I think that’s something, it just knocks their confidence a bit. I think we’ve got to convince them that, actually, what your teachers told you at school wasn't wrong, it’s just that this is more sophisticated, that science is all about building models to explain reality.	So the strategy is to reflect, to change things, to be flexible, to talk to them but not talk down to them, and certainly I would say to any young lecturer don’t be writing the lecture the night before. Know what your course is because then you can jump back and forth as you talk about something. You can say yeah we talked about this a week ago or something like that, you know. Know what you’re going to talk about, the whole thing, because then you can put it all together as a package.
Students from high school might understand that vinegar for example is a weak acid compared to hydrochloric acid, but they never knew why. And you could then show them that with equilibrium, this is why. And all of a sudden they’re, 'oh, I’ve always known that I shouldn’t spill HCL on my hand, but I can spill vinegar on my hand and put it on my fish and chips'... Those sorts of moments can really... the students go ‘oh wow.’ Anonymous	So, just to make them do some work, and made them think about the ideas themselves. Talk amongst themselves about it. I think that just too much of me in the lecture just washes over them after five to 10 minutes. So they just need to have a break, think about the problem, do a couple of problems, talk amongst themselves... that seems to help, with both the variety of students in the class, but also just keeping them engaged. Keeping their attention.

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