For appointments, ask at class or send email. Student questions in class are truly welcomed.
Email is also a good way to ask questions.
I try to check my email at least twice daily. It is aimed at persons who want to be professional biologists or who want to work in medical fields. The course is an overview of biometry, so that advanced statistics courses may be more easily comprehended. This course will not make a student a professional biometrician. However, students can learn the background needed to talk to statistical consultants, and to detect common errors of data handling in their professional literature.