It is impossible for teachers to teach their learners all the language they need to know in the short time that they are in the classroom. In addition to teaching valuable new language skills, it is essential that language teaching materials also teach their target learners how to learn, and that
they help them to take advantage of language learning opportunities outside the classroom. Hall
(1995) stresses the importance of providing learners with the confidence to persist in their attempts
to find solutions when they have initial difficulties in communicating. To this end, strategies such as
reword and using facial expressions and body language effectively can be fine-tuned with well
designed materials.