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Alibali, Martha W.; Nathan, Mitchell J.; Wolfgram, Matthew S.; Church, R. Breckinridge; Jacobs, Steven A.; Johnson Martinez, Chelsea; Knuth, Eric J. – Cognition and Instruction, 2014
This research investigated how teachers express links between ideas in speech, gestures, and other modalities in middle school mathematics instruction. We videotaped 18 lessons (3 from each of 6 teachers), and within each, we identified "linking episodes"--segments of discourse in which the teacher connected mathematical ideas. For each…
Descriptors: Mathematics Instruction, Teaching Methods, Middle School Students, Middle School Teachers
McNeil, Nicole M.; Grandau, Laura; Knuth, Eric J.; Alibali, Martha W.; Stephens, Ana C.; Hattikudur, Shanta; Krill, Daniel E. – Cognition and Instruction, 2006
This study examined how 4 middle school textbook series (2 skills-based, 2 Standards-based) present equal signs. Equal signs were often presented in standard operations equals answer contexts (e.g., 3 + 4 = 7) and were rarely presented in nonstandard operations on both sides contexts (e.g., 3 + 4 = 5 + 2). They were, however, presented in other…
Descriptors: Middle School Students, Mathematical Concepts, Symbols (Mathematics), Context Effect