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Table 7 A comparison of Sam’s and Rebecca’s communicative approaches during the examined lessons (following Pimentel and McNeill 2013 and Mortimer and Scott 2003)

From: Promoting the asking of research questions in a high-school biotechnology inquiry-oriented program

Aspect of analysis Sam Rebecca
Communicative approach Authoritative/non-interactive Dialogic/interactive
Main teacher moves Long speech acts, elaboration Probing, re-voicing, toss-back
Duration of the examined lesson part (min) 19 40
Percentage of teacher talk (%) 66 95
# of long teacher speech acts 6 0
# of I-R-E closed chains 2 14
# of long open chains 0 28
# of closed teacher questions 2 21
# of open teacher questions 1 56