One great aspect of a consecutive week program is that you can build from class to class and develop a relationship with your students. This will help as 24 students is a large class for most teachers and you will need to stay very present in order to meet all their needs. I would suggest having an assistant with you to offer enhancements and specific tips while you teach to individual students. I have found this to be a great help and the students really seem to love to extra attention.
During a 10 week program you will have time to cover lots of material so I would begin slowly with basic alignment principles. This way as you increase the intensity and challenging nature of the postures in your classes students will be safe and able to move confidently. Because your focus is on the core I would begin there and radiate out from that part of the body while always coming back to your initial focus.