I have a Statistics Master background but forgot most of the stuffs. Here is my plan:
I'd first have an objective in mind -- why do I need to relearn Math? For me it's because I want to study General Relativity in a rigorous way, so that needs some Math.
Then I'd break down the Math needed. I want to be safe so I'd include more Math than many people suggested online. Basically General Relativity can be approached by either tensor or differential geometry, so I'll take both. Now I check the prerequisites of them until I reach the root, probably Calculus and Linear Algebra.
Once I identify all courses I need to take, I'd go to MIT or other open course and download all assignments and final exams and go for them.
Of course in my case I need to take Physics classes interwoven, but your case may differ. I'd skip any material that is not required but also add some historical background.
I'd first have an objective in mind -- why do I need to relearn Math? For me it's because I want to study General Relativity in a rigorous way, so that needs some Math.
Then I'd break down the Math needed. I want to be safe so I'd include more Math than many people suggested online. Basically General Relativity can be approached by either tensor or differential geometry, so I'll take both. Now I check the prerequisites of them until I reach the root, probably Calculus and Linear Algebra.
Once I identify all courses I need to take, I'd go to MIT or other open course and download all assignments and final exams and go for them.
Of course in my case I need to take Physics classes interwoven, but your case may differ. I'd skip any material that is not required but also add some historical background.