In certain situations, you may want to prevent learners from getting too far ahead in a course. While we don’t currently have a calendar feature that allows you to open access to specific lessons based on time, you may use the Quiz gadget's blocking feature.
Add a quiz gadget to the lesson preceding the lesson you’d like to block. The Quiz gadget should be at the end of the last lesson you want learners to be able to access.
Create at least one question with a set of possible answers. One of the answers will be the code that students must select in order to unblock the quiz. Designate that code as the correct answer for that question.
Check the “Block the next lesson unless passed” checkbox in the Quiz property sheet.
When you decide to unlock the next lesson for your learners, share the correct code with them.
Instruct your learners to choose the correct code in the quiz, click submit, and they will be granted access to the next lesson.
To learn more about using the quiz gadget and the blocking feature click here.