In many universities there are honors math classes. For example, instead of having five "mixed" Calculus I sections they arrange one "honors" class and four "ordinary" classes.
How effective is this? What are the arguments for and against such arrangements? Is there any research showing the effectiveness of such an approach?
My personal view (from teaching in a regional university) is generally against the practice. I prefer all "mixed" sections, thinking that the presence of well-prepared and gifted students among the general group of students helps both. I also think honors credit are better to be given to students who work on a project with a professor in a personal setting.
Edit:
In USA the terminology of "honors" is used to refer to classes of well-prepared and motivated students who take the same course at a higher level. There are no standard terminology for what I referred to as "mixed" or "ordinary". Typically no adjectives are used, or they may be referred to as "non-honors". Sometimes terminology such as "STEM College Algebra", or " Calculus for majors" etc. may be used to note a course with higher standards than the average.
The expectations from an honors class varies very widely.