About three weeks ago, I was given a three year old Standardbred filly. The owner didn't want her to end up in the hands of a meat dealer so she has come to me to learn to be a riding horse. I've got a head start as she has been well handled and broke to drive. But there is still lots to consider as she learns to carry a rider. Five Things You Need to Know Before Training or Re-training Your Horse outlines what you have to remember as you begin the journey of educating or re-educating your horse.