The purpose of this study was to identify the differences between classroom interaction occurred in
digital textbook instruction and paper textbook instruction by analysing teacher's discourse. The data was
collected an elementary school located in southern Korea. The researchers observed science and math classes
taught by the same teacher. The teacher taught same units in both digital textbook instruction and paper
textbook instruction. Total of 12 units were videotaped and transcribed. To triangulate, multiple source of
data was collected including observation, teacher interview, and focus group interview with the students.
To analyse teacher's discourse, interaction analysis framework(Kumpulainen & Wray. 2002) was employed.
The framework categorizes classroom interaction as language function, cognitive process, and social process.
In terms of language function, organization interaction was more frequently occurred with digital textbook,
while conventional textbook showed more simple interaction such as responsive. In terms of cognitive
process, there was no prominent patterns by types of textbooks. However, in mathematics, there was more
explanative interaction with digital textbook. In terms of social process, dominant with conventional
textbook in science class and dominant with digital textbook in math class were noted. In math class
tutoring was the most frequently presented.