What does every other day means? Like monday, wednesday, friday and sunday?

But how can i understand that i dont make any gains? Should i measure my vert every week then? Oh and im gonna ask the last question i think. Is there any link where i can find videos or anything like this for those exercises: ankle jump, 4-star drill, alternating lunges, jump squats, slalom jumps, lunge jumps, low squat ankle jump because i don't know how to do them