"Find your thing that you really like doing and pour yourselves into it." Children took turns to ask questions such as "who washes your clothes and cooks your food when you race" and "how many hours do you train for a race" (Carter or his wife and five to six hours a day).
Gate Pa School principal Richard Inder said he was grateful his school had been selected for the visit.
"Children need role models and people who dream and share their dreams with our school children. Going to the Olympics is special and winning a gold medal is very special.
"It will be probably the first time they have seen, touched or heard someone who has won a gold medal."
Children got to play in a London double-decker bus renovated as an "Olympic experience" with a rowing machine and used i-Pads to send this year's Kiwi Olympic team messages of support.
Carter also visited Bayfair Shopping Centre yesterday morning.