“…An analogy is a systematic comparison of the similarities between two concepts, one of them familiar (the "analog") and one of them unfamiliar (the "target") (Duit 1991, Martin 2003, Glynn 2008, Behar, Grima, and Marco-Almagro 2013. The concept of a criminal trial, for example, is routinely used in textbooks to set the stage for hypothesis testing or to illustrate specific concepts such as false positives and false negatives (Bangdiwala 1989, Brewer 1989, Sowey 2001. Our experience suggests how useful these analogies can be, and we have found it particularly effective to develop teaching materials that exploit visual learning by illustrating analogies with photographs and diagrams.…”