Two teachers travelled from Ghana to the Gorbals to teach Glaswegian pupils about fair trade.
Owusu Kwadwo and Stephen Tetteh work with children whose families are employed on cocoa plantations, but last month they arrived on an exchange visit at Blackfriars Primary.
Fair trade had become a "personal issue" for Blackfriars pupils, said headteacher John Lawson, and last month's visit left a deep impression.
"Pupils in Ghana can't afford to buy the chocolate made from the cocoa their parents harvest," he explained. "We can walk into a Scottish shop and be spoilt for choice."
P7's Kevin Hamilton said pupils used email and Skype to keep in touch with contacts abroad, but nothing beat showing international visitors around Glasgow.
The visit ended on a high when the Ghanaian teachers saw snow for the first time.
Blackfriars Primary has links with schools in 10 other countries, including Russia, Sweden and Slovakia, and recently hosted a group from Kenya studying anti-drugs education.
Teachers from Blackfriars hope to visit Ghana in March.