przetłumacz na polski 1 At school you can learn different languages, like English, French or Spanish. But there are special schools where teachers and students speak a sign language. 2 In sign language you can make letters and words with your hands. It's for people who can't hear. There are different sign languages and different sign language alphabets. ae 3 Sign language is important in schools and at home. All the family can learn sign language. They can speak to children who can't hear. Some TV programmes are in sign language too.