Some more games to play to work with reaction times and improving them. Sorry, not games, but drills. Parents aren't paying tuition for you to hold recess.

Dodgeball

Dodgeball, albeit getting in trouble with the physical education teachers, works on reactions, movement, and awareness. I say that every time. And hey, you are going to get hit. That's also got to be seen as part of the game. (And if a student feels less esteem because they got hit by a foam ball, they really shouldn't be in the martial arts where we practice by hitting each other and practice by sparring...) Yet, you need to make this constructive as well. When a student gets hit, they should step to the side and go through their form, or maybe they do 5 push-ups. Something. After that they can return to the game. This keeps things moving and all the kids are doing something all the time.

Of course, be aware of issues with students so ten classmates are not teaming up on a single student. Make those throwing the balls also realize the constructive purposes for the drill.

Reaction Drill v. 1

Another drill to use that will get kids to relax and lighten up a class also enhances reaction speed by working the other senses. Students partner each other. One stands with eyes closed and hands by their sides. The other circles quietly and periodically taps the stationary student on a shoulder. The stationary student should react by immediately, using the flat of their hand, and try to swipe out to touch the moving student (eyes should remain closed).

Reaction Drill v. 2

Another drill that is essentially a variation of the previous drill is done by having the moving student hold a kick pad and circle around. The stationary student, on command by the instructor, must open their eyes and use either a set technique, or for more advanced students a technique of choice, to strike the pad. Again this promotes fast reactions and spontaneous thinking. How do you become spontaneous? By being spontaneous!