Quiz

Hello Ali,

"Each attempt builds on the last" is an option in the quiz settings. It is therefore not specific to the Formulas question. It applies to all question types.

From Quiz settings on MoodleDocs ↗, where I added "and with the same values for questions with random variables".

If multiple attempts are allowed and this setting is set to Yes, then each new attempt contains the results of the previous attempt. This allows the student on the new attempt to concentrate on just those questions that were answered incorrectly on the previous attempt. If this option is chosen then each attempt by a particular student uses the same questions in the same order, independent of randomization settings, and with the same values for questions with random variables. To show a fresh quiz on every attempt, select No for this setting.

I also added the following to the documentation:

In other words, if the option is set to Yes, the new attempt is just a continuation of the previous one. Students simply resume their previous attempt with the exact same questions and same values for questions with random variables, and their score as it was. If the option is set to No, the new attempt is an entirely fresh one, with new questions and new values, and the score reset.

Sometimes the teacher wants one or more students to be able to redo the test from scratch, while other students to be able to just continue where they left off. The option must therefore be set to No for the first student(s) and to Yes for the others. Since the option does not appear in the "User overrides", the teacher must ensure that it is set to No when the first student(s) launch their new attempt and to Yes when the others launch theirs.