We’ve shown you the three minute instructional video Nintendo uses to explain how to attach and detach Wii MotionPlus. Recognizing you busy people don’t have three minutes to spare, a GameTrailers user chopped that down to seventeen seconds.
https://kotaku.com/nintendo-explain-how-motionplus-thing-go-into-remote-th-5295928
WMplus instructions straightforward [GameTrailers]