How do students access the quizzes?

Am I correct in thinking there are quizzes associated with every lesson or are they separate? Could you please advise on how to access the quizzes?

Yes, in our School solution, each lesson has several learning modules, and one of them is a multiple choice quiz that assesses the student’s understanding of the concepts introduced in the lesson. In order to complete the lesson, students have to complete the quiz and score 80%. They can take the quiz any number of times they like to improve the score. The questions, and answer choices are randomized, and different each time.