Logo+(Turtle+Graphics)

[|Scratch] 

[|Scratch instructions]
 [|Turtle]  UCB Logo

Here is a link where you can get the free download for your computer: http://www.eecs.berkeley.edu/~bh/

__**Commands**__ ht - hide turtle st- show turtle cs - clear screen and turtle goes to "home" position clean - clears the lines off of the screen while the turtle "stays put" ct - clear text ts - full screen of text (do this if you want to see all of what you typed in) ss - split screen (shows the turtle and the small text box) fs - full screen pu - pen up pd - pen down fd 100 - forward 100 turtle steps bk 100 - backward 100 turtle steps rt 90 - right 90˚ lt 90 - left 90˚ bye - correct way to quit LOGO program without getting "yelled at"

__**Writing a program in LOGO**__ To make a square:

to S repeat 4 [fd 100 rt 90] end

__S defined__

When you type s and hit return, the turtle makes a square. To change the directions for square, type:

**edit "s**

(you will get a new screen where you can type in your changes) When you are done, choose File/Close and accept changes

Saving in LOGO Give it an appropriate name (house) and save it in your document folder.
 * The first time you save: choose** File/Save Logo Session

The next time you save: choose save as/house2

The next time you save: choose save as/house3


 * To retrieve your work**, choose File/Load Logo Session and then you must change the Enable: Logo workspaces to All files and then choose your most recent file. Your programs should now be loaded and any programs that you defined should work.


 * 0 black ||
 * 1 blue ||
 * 2 green ||
 * 3 aqua ||
 * 4 red ||
 * 5 magenta ||
 * 6 yellow ||
 * 7 white ||
 * 8 brown ||
 * 9 light brown ||
 * 10 pea green ||
 * 11 grayish blue ||
 * 12 salmon ||
 * 13 light purple ||
 * 14 orange ||
 * 15 gray ||

Here is an internet version of Logo that you can try at home:

Click on the link below and then click on "clear". You can now type your instructions in and then click "run".

http://www.mathplayground.com/mathprogramming.html