Positive Trigonometric Functions in Each Quadrant
All Students Take Calculus
Each word of the mnemonic starts with the letter of the word that tells which trigonometric function(s) are positive in each quadrant of a graph (where the origin equals 0). Each letter stands for a trigonometric function (e.g. Students = Sine) except for the first quadrant, where conveniently "all" stands for "all."