Titles

Description of titles.

Math

Description of math.

Theorem-like environments

Examples of the theorem environments.

Answer

An example of various uses of answer.

Choice answers

Examples of using choice.

Problem environments

Some problem environments.

Hints

Examples of hints.

Feedback

Examples of feedback.

Graphics and videos

Instructions for making graphics and videos.

Hiding text

Examples of pdfOnly prompt and onlineOnly.

Links

Examples of links.

Dialogue

The dialogue environment.

Sage-cell

An example of sageCell.

XKCD

Inlclude XKCD.

Foldable environments

Here we see expandable and foldable environments.

You can download a Certificate as a record of your successes.