Re: Techniques for beginners
Honestly with two years of experience I would spend time just teaching what you've learned so far. It will make you better at the basics (I am still learning the basics after twenty years LOL) and help bring them up to speed.
If your organization has a test guide for 5th and 6th Kyu start with understanding and teaching those techniques.
That means about half the class should be spent learning how to roll front, back, and breakfalls to give them a good "uke" base and the rest on the 5th and 6th Kyu techniques.