Many people who learn mindfulness say they wish they had learnt it sooner. The Mindfulness in Schools Project aims to extend mindfulness teaching in schools via its .b (Stop and Be) programm of mindfulness lessons aimed at year 9-12. If you might be interested to discuss mindfulness with school children, I am .b trained so do get in touch.
There is also a great 8 week course aimed specifically at adults who work with children (e.g. school teachers) which is having really beneficial impacts on staff in schools. If you school might be interested in a taster session on a staff inset day or after school, do get in touch and see what it is about.