“…Similarly, special education teachers tend to provide more directive (i.e., command, suggest, question) than responsive (i.e., elaborate, repeat, acknowledge) verbalizations (Kim & Hupp, 2005) and to use low-level and knownanswer questions (Hamm & Perry, 2002;Hestenes, Cassidy, & Niemeyer, 2004). Discussions involving problem solving and reasoning activities may represent a problematic participation structure for students with disabilities, who often have difficulties with discriminating key information in mathematics tasks and with using metacognitive strategies (Maccini & Gagnon, 2002).…”