In this set of exercises you will be introduced to three commands:
BOX CIRCLE STAR CS STARSKIP
Most of the buttons that you see in the sets of exercises are
labeled by the exact commands that you need to type on the SeeLogo
command line and we recommend that you type the commands yourself
rather than press the button because that way you may learn better.
Explanations:
The CS command clears the screen
CIRCLE 40 creates a circle of
diameter 40
BOX 80 50 creates a box of width 80 and height 50
STAR 7 makes a seven pointed star
Note that when you spead 7 points evenly and you connect every
other point you will draw STAR 7 (try it). The same effect can be
obtains by typing
STARSKIP 2 7.
However if you connect every
third point (draw it on paper) you need to type
STARSKIP 3 7
Load
Exercises:
Now look at the three exercises E1, E2...E7
and turn the red lines to black by using the commands you learned.
Type the commands on the SeeLogo Command line and notice that the
editor window is updated each time. After you finish E1 simply click
on the name E2 that is displayed in the picture Menu. If you made a
mistake don't worry. You can always retreat to a previous state by
clicking the UNDO button.
Hints: E1 you can start by
typing BOX 100 100
E2: This is similar to E1 but to get it just
right you can use Pythagors Theorem.
E3: Notice that there are 8
Points and every third one is connected
When you finish all exercises
save your work.
To see a picture of the exercises click here:
Picture