Measure class, precision, significant digits, and divmod()
ethan at stoneleaf.us
Wed Jul 16 00:32:30 CEST 2008
Ken Starks wrote:
> Ethan Furman wrote:
>> Hey all.
>> As I have mentioned before, I am making this Measure class for two
>> reasons: experience with unit testing, I like playing with numbers, I
>> am unaware of anything like this having yet been done (okay, three
>> reasons ;).
>> Any and all feedback welcome, particularly from anyone who might
>> actually use the Measure class. ;)
> My principal interest in your work, however, is in the use of
> unit tests as a pedagogical method of teaching programming, whether
> self-taught or taught by an instructor.
> The students would be taught how to __run__ a unit test-suite
> at as early an opportunity as possible. I can't see
> why an eleven or twelve year old should not be able to cope
> with it in hour one or two of a carefully structured course.
> What is needed for such an approach is a copy--in a public
> place--of your unit tests for all methods
> that are really part of the funtionality; together with
> blanked-out definitions for them (i.e just the first line,
> any in-code documentation, and 'pass' ).
> You would not include any 'internal' methods that are merely the way
> __you__ happened to achieve the result.
> The programming 'exercise' would then be for the students, or
> groups of students, to roll their own version until their code
> passed all the unit tests.
Definitely an interesting idea. I'm not sure if I should be worried
about the 12-13 year old students tackling a complex class such as a new
number class, or if I should prepare to be embarrased by how much
simpler they are able to make equivalent code! ;)
At any rate, once I'm done the code will be released under a very
friendly license, so you'll be free to do that should you desire to.
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