Interactive tables

Hi folks,

Is there a way to build interactive tables in Wikieducator?
Specifically I'd like to have young students track plant growth over
time and enter the data in a two-column table (day since planting, and
plant height).  In an ideal world I'd like their data to automatically
be reflected in a simple line graph with day on the horizontal and
height on the vertical.  What can I tell you, I want it all?  So, is
this technically difficult?  Is somone doing this already? (I'm not
above 'borrowing' their code; I'll cite them of course.

Thanks,

Declan (=user:dmccabe)