amidoinitrite, learning and teaching, repossessed to skate, skateboarding Deliberate practise with feedback July 15, 2016 / You have to have feedback as quickly as possible. 10,000 hours with a teacher, with constant feedback, is critical. What better feedback than skateboarding? You skate, you make a mistake, you fall, you bleed. Repeat. If you don’t get better, you break bones and have to stop. If you learn from your mistakes with the help of teachers, you stop bleeding. Deliberate Practice with Feedback.