How to write an introduction (for both theory and empirical papers).
How to write a theory paper.
How to write a model.
Many years ago I taught a mathematical class (with calculus) on Intermediate Microeconomics. It covered consumer theory, producer theory and partial equilibrium. I found the books to be too chatty, so wrote up my own notes.
Here are the lecture notes. Unfortunately these do not include the welfare theorems - I evidently ran out of time.Here are the homework problems and exams. I've included the solutions. There may be some repetition in here.