Grading in My Graduate Courses (somewhat based on Math Department guidelines).
Joel Friedman, UBC.  Spring 2019.

95% or higher (A+): student is strongly encouraged to pursue research in the
area; the instructor will write a very strong letter of recommendation for the
student.

90% or higher (A+): the student is encouraged to pursue research in the area
or a related one; the instructor will write an enthusiastic letter of
recommendation for the student.

85% to 89% (A): the student will be able to use some of the course material
in another field of research; research in the area is not encouraged without
significantly more background and study.

80% to 84% (A-): the student has fulfilled department expectations of the
graduate student.

79% or below (B+ or below): the student has not fulfilled department
expectations of the graduate student.  For PhD students, any grade of 67% or
below is an F.  For MSc students, a C or C+ (60-67%) is technically a
passing grade; any grade of 59% or below is an F.