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• Commands Overview
• Objects Overview

The Workspace

• Workspace commands
• Built-in global variables
• Listener Panel Commands

Working with Data

• Access data
• Test data or data contents
• Create and manipulate arrays
• Read, write, and print data
• Property Lists
• Multimedia commands

Program Flow

• Control the program flow
• Arithmetic computation
• Operators
• Debugging

Turtles and Drawing

• Create Objects
• Create and assign turtles
• Colors
• The Graphics panel
• Mouse commands

Robots

• Robot commands