| 107 | |
| 108 | |
| 109 | == Memory refresh == |
| 110 | |
| 111 | Bolt offers a ''memory refresh'' system that periodically repeats exercises |
| 112 | and, if necessary, lessons. |
| 113 | Memory research suggests that this is necessary for students to shift |
| 114 | learning to long-term memory. |
| 115 | This mechanism works as follows: |
| 116 | |
| 117 | * A sequence of ''inter-refresh intervals'' is defined. For example, (7, 28) means that an exercise should be repeated 7 days after it is first taken, and then every 28 days thereafter. |
| 118 | * Bolt provides a function that returns the set of items, for a given student, for which refresh is due. Your course can use this function to implement a "Review now" button on web pages. |
| 119 | * Bolt provides a "review mode" in which the student is presented with exercises due for review. |