Thanks for taking the time to reply.

I took your reply to insinuate that I was adopting a blinkered and immovable
stance on how I wished my students to answer a particular question, and that
I did not wish them to adopt any form of constructive thinking.

Nothing could be further from the truth; having given them a wide scope for
answering previous exercises that I had provided them with, the time had come
to move on to answering questions for a nationally recognised qualification.
Unfortunately these tend to be somewhat regimented and require an answer in a
particular format (that I don't necessarily agree with as there is almost
always more than one way of expressing a formula that will give the correct
result).

Having seen the length of the replies and coding that is involved with
solving my problem, I guess that it will be back to paper and pencil to mark
any answers.

I hope that this clears up why I responded to your comments in the manner
that I did as unfortunately plain text in a message can rarely convey the
point that you wish to make in the manner that you would like.

:-)

Tazzy

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