Friday, September 30

Vocab Quiz #3 - Windows

We will start the day with our 3rd Vocab Quiz - this week's list had to do with Windows.

After completing the vocab quiz you need to finish Formatting Activity 2.  The instructions for this activity can be found on yesterday's blog post.  Remember that this should be printed out and handed in - not emailed.  When you print you should have 2 pages.

If you complete the Formatting Activity I would like for you to begin doing some work in Logo.  We learned about the primitive FORWARD on Wednesday.  Here are other primitives that Logo understands:

RIGHT, LEFT, BACK

You can use these 4 primitives to move Logo (your turtle, but it actually looks like a triangle on your screen) by typing in FORWARD or BACK followed by a number that you want your turtle to move.  Actually, you can give Logo multiple commands.  RIGHT and LEFT tell Logo to turn; when you follow these commands with a number, the number you type in tells Logo what degrees to turn.  For example, if I type in "RIGHT 75" (don't use quotes!) Logo will turn 75 degrees to the right.  Get it??!!  Alright, now it's your turn.  See if you can create a square!

In addition to those 4 primitives that help to move your turtle, here are several others that will be useful to you while using Logo:

HIDETURTLE, SHOWTURTLE, PENUP, PENDOWN, HOME, CLEARSCREEN

After creating a design in Logo, you'll probably want to get rid of it on your screen so that you can move on and do what's next.  That's what the CLEARSCREEN command does - it clears the screen.  Typing in HOME moves your turtle back to the starting point and points it "up" on the screen.  HIDETURTLE - should be self explanatory, as should SHOWTURTLE.  The PENUP command allows you to move Logo on your screen without drawing any lines.  PENDOWN is used after you have used the PENUP command (PENDOWN is actually how Logo starts when you bring up the program).  You may want to try these commands to see how they work.

After creating a square, see if you can create other shapes - triangles, rectangles, circles, hexagon etc.

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