Maybe for the "natural" add in arms and/or zils with the moves. Or if it is something that you can layer a move on top of, add the layer for the naturals.

Once the move is introduced and drilled I often have the students vary the tempo (from half to full to double time) Then everyone is practicing the movement AND timing. I also do something like, "when you're comfortable with the movement, try adding this arm movement-drop the arms if you begin to loose the hips."

Or maybe try a simple combo; new movement for 8, old movement for 8, simple turn to the back and repeat

Then as they work through the combo a few times you have a chance to give the stragglers a bit more attention AND they get the relief of interspersing the new, confusing move with something they already know and feel OK with (and offering some relief to frustration is always nice)

Dear Indu,
This is where it is important to look at each member in the class as an individual and to see beginning classes as a time to drill each week, some of what has been covered in other classes. Each week my beginners get introduced to new concepts in movement, but we also go over old ones in order to make sure that the students are doing the movement well, rejoicing when someone gets something that they have had problems with in the past, and correcting little bad habits that might be trying to set in with older material. When introducing new material, give the concepts to everyone and those who get it quickly, make it a little more challenging on an individual basis for them by adding a tweak of some sort. Example: If someone is perfectly executing a fundamental shimmy, suggest that they try to lift their ribcage a little while doing so. It gives them a bounce forward into the world of layering and at the same time challenges them while others work to perfect the basic move. I hope this helps.
I know I have found that beginners are the hardest people to keep interested because often the class is made up of those who will develop a life long interest and those who are there because they like to take a lot of classes in different things, with belly dance being one of the classes they take for a time. Giving time to all as individuals is one way to help spark a life long interest, I think.
Regards,
A'isha

Moving and levels, in addition to arms and simple combos. I think it's important to have students move with a move (that sounds funny) right away, so they don't get "stuck," and the same goes for levels, learning to keep one's balance, etc. I have my students do whatever level is currently comfortable for them - some go all the way down, some just bend slightly, but they're all working their quads and learning balance.