My first science lesson was in physics. My physics teacher (a Mrs Snell - rather unfortunate name for a teacher) was a short, fat, frog-like creature that spoke in a monotone and just fobbed off any questions that came at her (I asked her once why only 10% of people were left handed and she said they weren't - it was 50/50). She seemed blissfully unaware of the chaos that usually reigned around her and just went on and on until the bell rang. There were 30 people in my science lesson, all armed with paper, elastic bands and bunsen burners, which made for much hilarity yet unfortunately not much learning.
Sadly this type of arrangement isn't unusual in schools although I hear it has improved somewhat recently. I got a good grade in science but it was nothing to do with Mrs Snell - it was all down to my private science tutor (paid for with my paper-round money) who somehow managed to teach me in an hour what Mrs Snell couldn't in 6.
If you are considering a career in science or need good science grades to get into university and your teacher is anything like Mrs Snell I highly recommend taking on a private science tutor. A little money spent today could change your entire career - it did for me!