Here's what this means in practice: Ms. Alvarez, Mr. Burns, and Mrs. Coleman are 4th grade teachers in your school. They are all eligible to participate in the project if you would be willing to assign any of them to teach any of the three 4th grade classrooms to which you would usually assign them. Effectively, if next year you would approve a switch of classrooms among Ms. Alvarez, Mr. Burns, and Mrs. Coleman, then Ms. Alvarez, Mr. Burns, and Mrs. Coleman are eligible to participate.

Here's another example: Ms. Valentine, Mr. Washington, Mrs. Yassky, and Ms. Zarini are the 9th grade math teachers in your school. If there are both advanced and standard-level math classes in your school, Ms. Valentine, Mr. Washington, Mrs. Yassky, and Ms. Zarini are eligible to participate in the project if you would be willing to assign any of them to teach any of the ninth grade math classes in your school, regardless of whether it is an advanced or standard-level course. Effectively, if next year you would approve a switch of classrooms among Ms. Valentine, Mr. Washington, Mrs. Yassky, and Ms. Zarini, then Ms. Valentine, Mr. Washington, Mrs. Yassky, and Ms. Zarini are eligible to participate. The critical point here is this: If you believe that only Ms. Valentine has the appropriate experience to teach the 9th grade advanced-level math class, then only Mr. Washington, Mrs. Yassky and Ms. Zarini would be eligible to participate, and only their standard-level math classes could be assigned through the lottery process.