Spey question #3
I don't know if you would call these props, certainly teaching tools,
I've had success by starting with:
Going over how to cast a single-hand rod, over-head (straight rod tip path, power application, stop pause etc.) I'll do this as a demo, 20 min's. and how important these are to all casting, then I work into a single hand roll, energized roll (switch), at some point, I'll peg a line on grass and explain (lift sweep, rise, forward stroke) "Thanks Derek Brown ! one of my hero's" then to water. As the lesson progresses, I'll get the group together and have each student show and explain the cast we are working on, to the group (this is so helpful and loads of fun). This I've found to be a great teaching tool, after each person explains the cast and demonstrates the cast ,you know they have it.
Have a game plan, but be prepared to change it.