Here’s a link to a quick game we play that might help reinforce a myriad of blocking skills like bracing, walling, and even communication.
Triangle Tag is quick and simple to set up. You need no equipment.
Three skaters form a triangle. You can have a wall of two with a bracer at the apex or have all three bracing (for some skaters, I find this brings them more success because many kids like to touch things with their hands).
You’ll then have a tagger outside of this triangle and this skater will try to tag the bracer either by getting around the base of the triangle or busting through their wall.
For sure, you can turn this triangle into a box and delineate whom should be tagged. But, perhaps you’ll have my experience that younger or beginner skaters find it clearer to be able to spot the top of a triangle to either tag or protect.