Expert Insights

Topic

Strategy

The concept of a continuum is, I think, really important in chemistry and… what I see is that students come up with this issue of things being black or white. They struggle with this concept of the in between stuff.	I use a lot of eye contact. The people in the back row are not anonymous, you know. Make sure you’re talking to them and make sure that you see them.
I started lecturing before I did my Diploma of Education and I would have recommended to all of the lecturers to do it because it really helped me in my teaching. Mind you, I already had a bit of experience, I don’t know, you know, the chicken or the egg type thing.	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.
I have one slide where I'm first demonstrating how we use curly arrows and that shows an arrow going in a particular direction from a nucleophile to an electrophile and emphasising that the arrow shows electrons moving - so it's got to start from where they are. There has to be some electrons there for them to move. So the whole screen goes black and comes up with a little orange box of 'never do this' which is an arrow starting from an H⁺, which has no electrons. The dramatic emphasis that the whole room goes dark and then it's just up there.	You could identify people and you use it in a constructive way. But if you could show some identity, that you’re not a remote person up the front, that the big class is not anonymous, it just helps to break down that barrier. And once they trust you and once they like coming, that solves a lot of other problems - behavioural problems, learning problems and so on.
They struggle with the language of chemistry. So we sort of need to teach them the process and how to work out how to do these things. We know that their tendency is just to attempt to memorise reactions. Whereas if we can teach them to derive … find out what the nucleophile and the electrophile is then all they have to do is draw a curly arrow from the nucleophile to the electrophile, rather than trying to work out what the reaction is itself.	We teach way too much stuff. We teach way too much stuff that we used to teach because students didn’t have the resources available to them that they’ve got now. I mean if you look at the resources - they’ve got textbooks, they’ve got electronic media, they’ve got Sapling. They can do the problems in their own time in a guided way with something like Sapling. We don’t have to do it, all we’ve got to do is give them the framework to solve the problems. And I think we often misunderstand how much we should give them because I think we underestimate the value of letting them solve problems in a guided way with things like Sapling. And I think, you know, in the old days we’d just do problem after problem after problem, which is as boring as anything.
A lot of it is from colleagues. Conferences are fantastic. You know, your chemical education conferences. I do go to a lot of those.	It was a revelation to me in second year when [one of the top professors] said to me, "Buy a model kit." And so now I tell all my students.

Pages