Use the professor's course outline as a template for preparing your law school outline.
Add a short statement summarizing that particular topic for each heading in the outline,. For example, in a criminal law course, the heading for one particular week might be "assault". Next to that heading, you would type "attempted/actual application of force" as a general cue for your memory.
Add brief notations about the applicable legal principles for each subheading in the outline. Include statute sections and case law as appropriate. For example, in a family law course you would put FLA (Family Law Act or the name of the family law statute in your jurisdiction) and for the section on "definition of spouse" you should reference the FLA definition section and summarize the leading (precedent setting) cases establishing the definition.
State the issue as a question for each legal principle. Summarize the legal analysis, and note one or two of leading cases that established the principle. Make only short notes about the facts in the case to trigger your memory.
Review your outline for legal accuracy. Reference your course textbook and course notes to ensure accuracy.