Figure 1. The mystery picture “Balloon in the flask”

From

Development and Evaluation of a Practice Model Based on the QUILT Framework in Case of the State Change: Analysis of Utterance Protocol Using Text Mining

Takekuni Yamaoka, Shinji Matsumoto

American Journal of Educational Research. 2016, 4(4), 360-365 doi:10.12691/education-4-4-10