What should I include as "evidence of effective teaching methods?"
From the perspective of someone who has been on a search committee this would normally mean your teaching evaluations -- either as a TA or as the instructor on record. Any teaching awards you might have won in this regard would also count

But we also recognize that not everyone has had TA/IOR experience. So it could also include:


Evidence of having taken teacher training / professionalization seminars
Sample syllabi and assignments
Student/faculty/participant feedback from guest lectures and guest talks


This question is deliberately broadly worded so as to not exclude people who haven't had to teach. You can include a cover sheet to this item category (i.e., when you upload your PDFs you include or prepend a cover sheet) that notes how you have interpreted this and let the committee know that you are willing to send more material if requested.

Why is this material requested? After the search committee makes its decision, your file goes to the Provost's office. The Provost will want to see "evidence of teaching effectiveness" as well as "evidence of research" as part of the portfolio. It's simpler for the committee if you can make this case for them ahead of time.