Form 1

LOGO

What ?

Title Bar

What ?

Menu Bar

What ?

Turtle’s playground

What ?

Turtle

What is this area?

Commander Window

What ?

Input Box

What are they ?

Command Buttons

Pen control

• PE : Pen Erase• PX : Pen Reverse• PU : Pen up• PD : Pen Down

Try the following example

• PE• REPEAT 4[FD 100 RT 90]• PX• REPEAT 4[FD 100 RT 90]• PD• REPEAT 4[FD 120 RT 90]

ST & HT

• ST: SHOW THE TURTLE• HT: HIDE THE TURTLE

Try the following

• HT• FD 100 LT 72• FD 100 LT 72• ST• FD 100 LT 72• FD 100 LT 72• FD 100 LT 72• HT

PRINT, CS & CT

• PRINT a message• CS : Clear screen• CT : Clear the commander window

Try the following

• CS• REPEAT 6[FD 100 RT 60]• REPEAT 3[FD 120 RT 120]• CT• PRINT [repeat 4[fd 120 rt 90]]