The youngsters visited prestigious Glasgow hotel One Devonshire Gardens, where pastry chef Iain Baillie taught them how to make scones ahead of the Macmillan Cancer Support event tomorrow.
The pupils, all studying hospitality in fifth year at school, were given the chance to make scones in the busy kitchen.
They were welcomed by head chef Darin Campbell, who said: "There will no doubt be lots of cakes being eaten during the World's Biggest Coffee Morning and I'm sure lots of baking will be going on this week.
"It's great to have young people who are so interested in learning how to create food from scratch. Cakes are always more satisfying when they are freshly made."
Macmillan hopes to raise £1million in Scotland tomorrow. Visit www.macmillan.org.uk/coffee