who had a different one. And I didn’t meet with her but we had extra time so she was telling me about how like gas from the cars could pollute the stream, and I thought that that was a good idea cause that was happening. Interviewer: Yeah, um, so, so your new ideas did not come from the like speed dating model comparison. It came from you sitting down with your friend and talking about your ideas. Student 5: Yeah.Even more, Student 5 shared that the conceptual model provided enough information tounderstand other students’ mental models: Student 5: Um, most of them use arrows instead of drawing a lot of the rain and they do like big arrows and small arrows and they didn't really describe what was