(1) (a) What is the purpose of the supplementary Physical Science and Mathematics books that her department is supplying to secondary schools and which were developed by the Shuttleworth Foundation, but not approved according to the recently compiled national catalogue and (b) what is the difference between a textbook and a supplementary textbook; (2) whether these books were subjected to the same process of selection and approval as other books; if not, why not; if so, what are the relevant details; (3) why were these books procured despite not being listed in the national catalogue?