Arrangements for adults L4S - personalised learning workshops Improving general knowledge and skills in the fields of languages, mathematics and the sciences. abcd.lu – Basic education Personalised classes for adults wishing to improve their skills in reading, writing, speaking, comprehension and arithmetic. Education for people with specific requirements Special classes for the blind or visually impaired and for the deaf or hard of hearing. Family Learning Supporting families in order to promote the educational and academic success of children and adolescents. CAI - Reception and Integration Contract Optional reciprocal undertaking between the State and any foreign resident over 16 years of age to attend language and civic instruction classes.