?? Consonant Speech sound characterized by friction or stoppage of the airflow as it passes through the vocal tract; usually any letter except a,e, i, o, and u. ??? ??? ??? Consonant digraph Two adjacent consonants that represent a sound not represented by either consonant alone (th, ch, sh, ph) ??? ??? ??? Content Area Reading Reading in Social Studies, Science and Math, etc. ??? ??? ??? Context