Hello, I teach business so really helpful for research, making short videos, book creator, near pod, popplet for making mind maps, Educreations for making short tutorials, watching videos, writing reports....takes a while to get used to the apps, we have had a lot of training and support which has been invaluable.
Quite a few threads about them maryshelley, try a search. You will grow to love them rapidly, they are ace. Try all of simplytes's recommendations, add to that idoceo as your grade book, teacher planner as your ( you guess!), socrative for afl, showbie for collecting in and marking work online, always handy calculators, stopwatches and mini whiteboards without the non working pens.