ER: do you think you were learning anything when you were using them?
B: yes
ER: What do you think you were learning?
((pause))
ER: What about the one with the camera? That took a picture of your shadow. Do you think you were learning anything?
B: yeah.
ER: What?
J: To see your own shadow properly with a - I think it is a - the ( ) cos it's dark in there but ( ) see your shadow but in that part you can see it in dark.
ER: right. So that's what you learned. You can see shadows in the dark as well as in the light.