Whether this is your first time on snow, or you just need to brush up on technique, there is no shortage of ski instructors to choose from. By far the largest ski school is L’Ecole du Ski Français, otherwise known as ESF. Lessons can be booked for the whole week, mornings or afternoons, individual or group.
There are several other English ski schools which operate from Courchevel, including Magic Snowsport Academy, New Generation and Supreme Ski School. We have used New Generation ourselves when we brought some friends with us, and can thoroughly recommend them. More details can be found on their websites.