It’s cold. There’s no better time to do some slow, finicky training like lateral movements. It’ll improve performance when you can get sweaty again!
Horse in a halter or bridle
Helmet and Gloves
To learn this exercise successfully, your horse needs to know to not run away from the whip, how to go from two light whip taps, and how to stop from light halter or bit pressure. If he doesn’t, go back to this post first: https://clairetyhorsemanship.ca/2021/01/27/training-exercise-slow-down/
Using a series of light taps with a dressage whip on your horse’s stifle, get him to step away from the taps with that leg by quitting the taps as soon as he moves the leg away, crossing it underneath himself in front of the other one. Reward only one step, or even half a step at first, especially if your horse is prone to getting anxious. Next walk forward five steps and stop. This will set up his legs to be in a good position for your next ask. Ask again for one step to the side. See how precise you can be with one step sideways and five steps forward.
Teach this on both sides.
It will be easier to transfer this to your riding once you can do this sequence calmly, slowly, and thoughtfully. Sidepass, leg yield, haunches in, shoulder in, renvers, and pirouettes all use yield to some extent!