4 Types of Skaters

Question
Hello Guy:
I read someplace that there are 4 types of skaters, one of them being called a "Walker."  Can you name and explain the 4 types and what to do to correct the problem in an 8th grader who is a solid and motivate player but whose head bob like a jack in the box?
Thanks for you help, Coach Alex

Answer
Hi Coach Alex,

To be completely honest, I am not familiar with all 4 types of skaters. I will take a deeper look into this over the next day and weekend, and get back to you by end of Monday with hopefully information on all 4 types of skaters as well as what can be done to help with your player.

Thanks,

Guy