Scheduler (plugin)

hi all

i study moodle. it is very good. i really like moodle.

now i create a course in moodle.
and i wana create authantication to use only some part of course.

supouse my course contains 10 week course.
and i want that a perticular student can access a perticular part of course.

is it possible by shedular plugin

i deploy this plugin in mod folder and install it
but i don't know how to use that plugin
from where i create shedule for a student

if it is not possible then pls suggest me another plugin which can solve that problem

thanks and best regards
dinesh chopra