Gaspar Martins, Sandra2017-06-052017-06-052017-03MARTINS, Sandra Garpar – Weekly online quizzes to a mathematics course for engineering students. Teaching Mathematics and its Applications. ISSN 1471-6976. Vol. 36, N.º 1, (2017), pp. 56-631471-6976http://hdl.handle.net/10400.21/7141A set of weekly optional online quizzes was used with 104 students on a Multivariable Calculus course (MC), via the Moodle online system. These quizzes contributed a maximum of two extra points, and this was awarded if the student scored more than 9 points (out of 20) on the exam. All the students got the same questions and could resubmit the answers without penalty. There were usually several sub-questions embedded in each item. The effectiveness of these quizzes, applied with this set of strategies, was studied using students’ adherence and performance. Students’ vision of quizzes was also studied: usefulness, fairness, effect on the amount of study, awareness of the student’s level of understanding, and influence on outcome scores.engjournal articlehttps://doi.org/10.1093/teamat/hrw011