Hover over a module name to view its abstract, but please note that some descriptions are still geared towards our staff, therefore the level of detail varies. As we revise lessons and their abstracts, we will post PDFs with extra information about each module linked to its name. You might also find cluster map of the relationship between our lessons helpful in selecting and sequencing a series of related modules. A more verbose listing of abstracts is also available.

Highlighted entries have been updated within the past 90 days.

* Lessons marked by an asterisk require extra notice to prepare.

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