(i) Identification of children with speech or language impairments;
(ii) Diagnosis and appraisal of specific speech or language impairments;
(iii) Referral for medical or other professional attention necessary for the habilitation of speech or language impairments;
(iv) Provision of speech and language services for the habilitation or prevention of communicative impairments; and
(v) Counseling and guidance of parents, children, and teachers regarding speech and language impairments.
Above is an excerpt taken from http://www.parentcenterhub.org/repository/speechlanguage/ . This website is both excellent in information for teachers and parents of those with speech and language impairments. Another excellent and informing resource can be found at http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2491683/.
MODIFICATIONS: each student has their own set of needs- with this being said, modifications is adaptable to the child's personal needs. Different forms of adaptable technology can be used, such as hearing aids, written lessons, and other forms of technology that are specially designed for those with speech and language impairments.