Some usefull Links to help coaches to plan and develop sessions:

RFU Coaching Academy
(Log on from your coaching course/rugby1st log in and see all info from courses you have attended)
www.rfuca.com

RFU schools website
(Good for lesson plans and other info)
www.rfu.com/home/managingrugby/managingschoolsrugby

Set for Sport
(Good session plans to develop Fundimental movement skills)
www.set4sport.com

Fundamental Movement skills cards
(From NSW Australia Games cards very good for ABC's)
Fundamental movement cards

Coaching archive on You Tube
(A mix of everything)
You Tube coaching archive