like my tutorial time. Can I swap? You can only swap if you have an actual clash, or can find
someone to swap with, or if you want to swap INTO a 4pm tutorial.
Otherwise the numbers will go wrong.
I missed the lecture. Can you give me the notes? If you miss a lecture it's your responsibility to catch up. You
should first try and fill in the gaps in the printed notes yourself,
then ask a friend who was at the lecture.
Do we have to learn the proofs for the
exam? You need to be able to
prove things in the exam. This doesn't necessarily mean learning proofs
off by heart - it's better to understand the proof and remember the
main idea of it, and then work out the proof logically yourself. People
who try to learn proofs off by heart often write down something very
similar to a proof, but crucially wrong.
When will the solutions to the past
exam papers become available? Solutions will only be
provided to the sample papers; these will be available after the Easter
The notes are too chatty for my liking
- can you make some less chatty ones for us? No.
revision then I applaud you, but you
should make them yourself.
When will homework and tutorial
solutions become available? After
The online tests are worth a total of 20% of the final mark. There are
ten tests, due each week on Friday at 3am from weeks 2 to 11
inclusive. Yes, the deadline is in the middle of the night, to
prevent system overloads close to the deadline. Each week the test will
become available after Monday's tutorials. The tests may have different
numbers of questions but each week is worth the same.
To do the online test, go to this webpage and follow the
You will need to select Rings and Groups, and use your usual login, but
get the system to send you a
Please try the system *early* so that we have time to deal with
technical problems that will probably arise. If you run into
technical problems at 2.55am before the deadline I will not be able to
One possible problem is if you registered late for the course so aren't
the system yet.
Some of the test will involve typing in answers, and some is multiple
choice. Some of the multiple choice questions will have more than one
possible right answer (these are called "multiple response"), so to get
full marks you must select precisely all the correct answers, every
single one that applies. You
can tell the difference by seeing if the
answers are offered with little circles to select the correct answer,
or square boxes that produce a tick if you click on them, with a
possible choice of "None of the above".
You can mark your answers immediately, and if you get something wrong
you can have a second attempt; you will only get half
marks for your second answer.
It's ok to discuss the test questions with other people, but you should
make sure that when you put your final answers in you are doing it by
yourself. You may use your lecture notes as much as you want.
Note that the
tests are randomised so that everyone will get a slightly different
Each test may include anything from the course so far, together with
mathematical skills, or revision from Groups and Symmetries or Numbers
Note on the marking of multiple
When you mark a multiple response question, you may be told that you
are "partially correct". This will happen if you are not completely right or completely wrong. Here,
"completely wrong" means that
for every answer that was supposed to be ticked, you failed to
tick it, and
for every answer that was not supposed to be ticked, you ticked
This can result in some slightly odd notions of "partially
correct". For example: you are asked whether a function is
injective, surjective, bijective. If it is actually none of the
above, but you select "injective" you will be told that you are
partially correct. This sounds silly in normal English but makes
sense according to the logic explained above.
etc Note that some of these links will not open until the relevant
time (eg homework solutions).
The YouTube channel for
this course can be found here.
Note that the following solutions may say "PMA216 2009" on them, but
If you downloaded last year's solutions before the semester began, they
will be the right ones.
It's up to you whether or not you use those illicit solutions to help
you do the work.
Think about what will be of most benefit to you.