2. Method
2.1. Participants
The study involved 166 students (125 boys and 41 girls) in their
last 2 years at secondary school (mean age=17.84; SD=.74) in
northern Italy. The mean age of participants in 12th grade was
17.35 (SD=.73) and for those in 13th grade it was 18.03 (SD=.65).
Participants were attending schools where geometry had an important
role, i.e. secondary schools that focused on science or specialized
in land surveying, or technical and industrial colleges