Daily quizzes are important when used as part of a regular, formative assessment in order to drive modification of instruction. Additionally, daily quizzes help students achieve skill mastery.
Daily quizzes are important because they are a good indicator of student comprehension and instructor effectiveness. As long as the quizzes are short, focused on content and used for evaluative rather than grading purposes, they are one of the most effective formative assessment tools. Daily quizzes lose effectiveness when they are used simply for assigning points or grades to students but are not evaluated as an assessment of learning. Instruction improves when daily quizzes are used to drive teaching and learning.