Here are some tips for giving the best impression, Day One:
#1 Be Organized, Tidy, and Ready
This will immediately stand out to students. Wow, supplies are all organized and labeled, books are on shelves, and look at her desk! Everything has its place and all is in order. (...)
Be sure to also have ready your procedures and hard rules (no gum chewing or cell phones) so you can share them at the very start of the day. This will avoid that preventable and awkward moment with a new student.
#2 Have Too Much and Too Many of Everything
Make extra copies, just in case. There is really nothing worse than being one or two copies short. Panic! Need name tags or construction paper? Get the extra large pack (you can use the leftovers for another project). Have a surplus of pens or pencils handy for those kids who have already misplaced or lost theirs.
#3 Overplan the Lesson
Timing is everything. And the last thing you want is for there to be six minutes left before the lunch bell and have little to nothing for students to do. You don't want them to see you scrambling for a sponge activity not connected to the prior teaching so overplan the day. And the best part about this? You'll have most of the next lesson already done.
#4 Rehearse
If your "welcome to this class" speech includes new material (a new procedure or content -- something you've never introduced before), practice. If you are a new teacher, this is imperative. By rehearsing, this gives you an idea on pacing, one of the greatest challenges for most beginning teachers.
If you are using technology, arrive early to make sure all is in place and working.
#5 Be Ready for Anything and Everything
Don't think you will need the dean's or assistant principal's phone extension that first day, or that replenished first-aid kit, or have to directly address name-calling with a student five minutes after the bell? We wish, but unfortunately, it happens. I had the experience one first day of breaking up a fight between two students -- such a bummer, but sometimes a sad fact. Students will be impressed if something goes awry and you handle it quickly, and with wisdom and grace.
#6 Start Learning Names Immediately
The sooner you dive in on this task the better! I am a visual learner so making a seating chart right away and using their names as much as possible helps. Here's some further suggestions and techniques that you might find helpful. Many teachers will tell you that getting names down as soon as possible helps with discipline and, sure, this is true. However, I believe that rather than assisting in an authoritative way, it more importantly sends the message loudly and clearly that you are interested and that you care.
First Impressions of Students
That first day, a student sometimes enters the room too loudly, says something slightly abrasive, or ignores an instruction. Then comes Tuesday morning, and it's my job to wipe the slate clean. Modeling forgiveness and kindness and giving a kid a second (third, fourth...) chance is part of the job of a teacher.
See more at:
https://www.edutopia.org/blog/back-to-school-preparing-first-day-rebecca-alber