just checked, it's £15 for a childs weekly 'Rover' on Rossendale transport making it £3.25 a week cheaper if you buy her a weekly ticket (5x £3.65)
using Transdev a weekly 'silver' childs ticket will cost £10.20, with this ticket she can go to other places at the weekend such as ....
Accrington
Blackburn/Darwen
Bacup, Town Centre
Bolton, Moor Lane Bus Station
Chorley, Interchange
Clitheroe, Interchange
Haslingden, Bent Gate or Road End
Keighley, Bus Station
Preston, Bus Station
Rawtenstall, Bank Street / Bus Station
Skipton, Bus Station
Todmorden, Bus Station
i know which i'd opt for
it will take her as far as school during the week too
http://www.lancashirebus.co.uk/fares.jsp?fareTypeID=43