@Devevius and @Squire
That’s great advice.  Thankyou
I teach at a middle school and to bump up my hours they sent me to a preschool down the road.  It’s been quite an adventure.  I was of to a rocky start it seemed I was watching the seconds go by, a few months later I never have enough time.

I definitely recommend lots of music and songs, a little work on the Alphabet but they are going to do all that in Elementary.  Songs will help them start to create sentences and work on phonics.

These are some video links I have found work great.
it will take time to get them into it, I had to learn not to be upset at the lack of reaction for the first few times.  But STICK through it ;)

Make a few flash cards to help and work on individual lines.  But don’t spend too long, maybe 10 mins then move on to another activity and continue the song next week.



Great weather song you can find flash cards on their linked website.


Head shoulders knees and toes.  The kids enjoy running from the "bull" at the end


Purely for fun and to introduce the kids to numbers,  don't use with the younger kids.  I often just repetitively count to 10 but my older students will start trying to say thirty one, thirty two
https://www.youtube.com/watch?v=S4rhzjD5ohw&list=PLv2esjDiEYfFCLjZPQSowHN1dTgndKIAw&index=1

To start the class or calm the students down, its the ABC but again don't enforce them to learn it just try make actions for each one they enjoy when I say pig, push up my nose and start snorting.   Eventually some of my youngest students started to sing along.
https://www.youtube.com/watch?v=BELlZKpi1Zs&list=PLv2esjDiEYfFCLjZPQSowHN1dTgndKIAw

There aren’t a lot of Preschool threads so I just wanted to post to help out other people who were in my position. 
It can be really hard to filter through the thousands of you tube videos and find ones that are simple and interesting so I hope these help someone :)

Have the basic question time.
How are you?,  What’s your name?,  How old are you?  How’s the weather?
A ball in a circle can work well, first you rolling to a students and asking eventually you can get the kids to roll to each other and ask the question.

Also I like to finish the class of with a story, not to long but the kids can focus on your voice and facial movement.  Rather than always on a TV.

Good luck for all those teaching remember to smile.  With preschool the kids will automatically love you, not like them middle schoolers ;)

They are so tiring but they are so cute. It does get a little annoying when they start fighting to hold my hand.

Anyways I have a nephew in pre-k so it helps that my sister shares with me what he enjoys. I havent given it a go but I've been told he loves ABCmouse.com and my sister has a subscription with them so I will give that material a try. There a 1-month free trial of it if anyone wants to check it out.