pop quiz

n.

（给学生的）突击小测验，随堂测验，不提前通知的考试；

Pop Quiz
POP QUIZ!
POP QUIZ
POP QUIZ with Jack Lemmon
Flunking Pew's Pop Quiz
POP QUIZ: CLASSROOM MANAGEMENT STRATEGIES
Pop Quiz: Do You Use this Evaluation Method?
Pop Quiz: How Do You Recruit the Best College Grads?
Extra credit exercise: A painless pop quiz.
INFLUENCE OF UTILIZING THE POP QUIZ AS AN ENHANCER OF ENGINEERING STUDENTS’ RETENTION
Effects of Pop Quiz in Histology and Embryology Experiment Classes on International Students' Performance
Toxicology Rounds: Test Your Tox Smarts with the Annual EMN Pop Quiz
Expanding the Use of Simulators as Assessment Tools: The New Pop Quiz