The lp:project-service has a module to record "materials spent" on a Task. It might allow you to record "lesson" pieces.
Regards DR _______________________________________________ Mailing list: https://launchpad.net/~openerp-community Post to : openerp-community@lists.launchpad.net Unsubscribe : https://launchpad.net/~openerp-community More help : https://help.launchpad.net/ListHelp