Parents wanting a signed communication form for their child today are spoiled for choice - and teachers confused, says Radhika Holmstrom British Sign Language (BSL) teacher Cath Smith is aware of the ignorance around her speciality. She recalls, 'When we put up posters with finger-spelling at a recent exhibition, teachers were coming up and asking us what they were. They'd ask if it was Makaton - a sign system derived from BSL - but they weren't really interested in the difference.'