This module is synchronous during class session, but recorded for asynchronous viewing.
Type the same text several times, at least once per each method, while in the first stage "Providing sample data". If you make a big mistakes, you can click on "Erase samples" to start over.
Then, switch the stage to "Comparing to sample data". Write in a single method and then press "Analyze" to see the result. To try another method, use "Reset analysis" and then type in a second method, reanalyze, etc.
If you want to clear the text box, you can either select and delete or click on the "Clear text" button.