Preparing DrScheme Jr

IMPORTANT: DrScheme Jr provides several language levels that customize DrScheme Jr for different levels of learning. Initially, set DrScheme Jr's language level to Beginner via command-line flags.

To set DrScheme Jr's language level to Beginner:

• Under Windows, run "DrScheme Jr" -l Beginner --save in a command shell in the plt directory.
• Under MacOS, double-click on DrScheme Jr. A dialog appears with a text box that lets you enter command line arguments. Type -l Beginner --save into the text box and click OK.
• Under Unix, run plt/bin/drscheme-jr -l Beginner --save in a shell.

The --save flag (note that there are two dashes) saves the language level selection to a special file. (Run DrScheme Jr with the --help flag to determine the name of this file.) When DrScheme Jr is restarted, it reads this file to obtain the previously selected language level. Thus, after setting the language level once, DrScheme Jr automatically uses that language level when it is restarted. (Under MacOS, to use a previously selected language level, click OK in the initial dialog without typing into the text box.)