When you are talking about the name of a specific class or course, such as Math 241 or Chemistry 100, always capitalize it.

Should I capitalize the name of a class?

Also, names of school subjects (math, algebra, geology, psychology) are not capitalized, with the exception of the names of languages (French, English). Names of courses are capitalized (Algebra 201, Math 001). You should capitalize titles of people when used as part of their proper name.

Do you capitalize science?

You only capitalize them if they are part of the degree that you are being awarded, such as a “Bachelor of Science in Computer Science.” The following examples of classes would need to be capitalized: ... Computer Science 101.