Chengde Mao teaches 5 sections of 5 courses at Purdue this Spring 2027: BIOL 49400, CHM 25700, CHM 49900, CHM 69800, CHM 69900. 5 sections have open seats. Open a course for the live picker and a free email when a seat opens.
72% of 78 students got an A or B across 2 courses, from Purdue's published grade distributions. Past grades don't guarantee future ones.
Instructor of record from Purdue's public class schedule; grade distributions as published by Purdue. All Purdue instructors. ClassMaxx is not affiliated with Purdue.
The iPhone app pushes the alert the second a seat opens, builds four ready schedules from your degree audit, and ranks sections by real grades. Free; a $4.99 Fast pass per semester makes alerts instant.