An exit ticket is only useful if it tells you something you can act on tomorrow. A few principles keep it sharp, and they shape how PDFQuiz drafts your questions.
Keep it to a few questions. Three to five items that take three to five minutes is the sweet spot. Students stay focused and you can read a class set fast. Set a low question count and the tool keeps the ticket tight.
Tie it to the lesson objective. The check should target what you wanted students to learn today, not last week. Because PDFQuiz builds from the file you just taught, the questions stay anchored to that day's content.
Ask for the key idea, not trivia. Aim a question at the concept that matters most so a wrong answer actually flags a misunderstanding. You can edit any draft question to sharpen its focus before you print.
Mix recognition and recall. A multiple choice item gives a fast read, while a short answer shows how a student explains the idea. Combining a couple of formats tells you more than one alone.
Make the data easy to use. An answer key lets you sort responses into "got it" and "needs another pass" in seconds, so you can plan the warm-up or reteach for the next class.