Skip to main content


Table 3 The closed-chain interaction in Sam’s lesson (5:48 in recording)

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

Turn Speaker Utterance Pattern of interaction
1 Sam “If I think that something is affecting, I usually use two treatments, right? In one treatment I provide the treatment to see that it affects. What would be the other treatment?” Initiation
2 Student “Control.” Response
3 Sam “That is correct; the other treatment would be the control, to compare.” Evaluation