I take a dry erase marker and write their names on the front edge of their desks (warning first if they give the wrong name I will call them that name forever). I still call one boy "squid" it is a fun joke, we laugh. It wipes right off and most of the day they will wipe at it but it gives me a head start. (Third grade and up).
I always, always take stickers and usually a small bag of "prizes" cool pencils and little plastic toys etc...usually gathered from my kids old stuff. If they can get 10 stickers in one day they get a prize. Or we play "simon says" or some other such game as a time filler and I have a small prize. They love this!!
Learn how to get their attention..with sayings like, "One, two, three, eyes on me" and they answer "One, Two, Eyes on you!" or ask a trusted student how their teacher does it. One teacher has wind chimes...argh...
I have discovered that you have to be strict first thing in the morning. One warning and then move the card or clip. Don't keep giving warning after warning!! Once that two students maybe three have moved a card/clip...the whole class knows you mean business and are pretty good the rest of the day.
Find the nurse slips and the band aids first thing. Everyone will need to go to the nurse. If your school doesn't keep band aids in the classroom I am so sorry!! Most of the time if you put a band aid on it they are happy...but you will still have the three or so kids who will just have to go to the nurse. Send them very hush hush and quietly or a line will form. (I had a sub miss my child's 103 fever once, so I always err on the side of caution.)
Oh, for the older kids I will have complicated coloring sheets in my tote bag. They are great to motivate the kids to do their work and great time killers for when the teacher doesn't leave enough work.
If the teacher leaves a lesson plan...follow it, even if you have to google or youtube the math lesson so you can teach it. They hate subs who do not have the kids do the work they left for them.
And sometimes you have to fly by the seat of your pants...once I was subbing kinder and was only left a tub full of old holiday worksheets (this was in May). I was horrified!! I popped into the room next door and the teacher was glad to copy her lesson plan for me and help me figure out what to do.
Try and have fun with it...and always preface the day with, "I am Mrs. _____ not Mrs. Teacher's Name and so I will do somethings differently and that is okay just go with it." Or they will tell you all day that you are doing _______ wrong. Then you can just remind them you are Mrs. ____ and today is different.
Good luck...it is so fun and so exhausting!! Message me anytime!!