HW #3 & #4: KAREL THE ROBOT

1. Read: "1. Overview: Why We Program Karel the Robot"

   Read: "2. Karel's World"

   Note: If you are using Karel on a UB Windows machine, then you do not have to install Karel. It is already installed.

   Note: If you want to use Karel on your own machine at home or in the dorm, you need to download and install your own copy. Instructions for doing this are on the Web page "How to Download Your Own Copy of Karel the Robot onto a Windows PC"

   (On the UB machines,) start Karel by choosing:

   Start --> Programs --> KarelTheRobot --> KarelTheRobot
   If you are running Karel on your own machine, you should know where you stored it, so your method of finding and starting Karel might be slightly different.

   You will probably need to move the Karel window so that you can see all of it. I also recommend that you "maximize" the window.

   If you don't know how to do these things, see your TA, or send me email, or take a workshop on how to use Windows.

   NOTE: To exit Karel, just click on the X in the upper right corner. Be sure that you have saved any "worlds" or programs that you want to keep for the next time you use Karel. (See the Web page "How to Save and Load Karel Files" for instructions on how to do this.)

   Do all the tasks in the "Karel's World" document:

   • placing walls
   • placing beepers
   • creating the world shown in the last illustration
   • saving that world
     For information on how to save, see the Webpage "How to Save and Load Karel Files"

2. Read: "3. Programming Karel", & do all the exercises.

   In particular, do "Assignment 1":

   • save the program you write for Assignment 1
   • print it out

3. Read: "4. Karel's Primitive Commands".

   Do: Assignment 2.

   • save the program
   • print it out

4. Read: "5. Karel's Control Statements"

   Read: "6. The if/then Statement"

   Read: "7. Conditions Karel Can Detect"

   Do: Assignment 3 (save it & print it)

5. Read: "8. The iterate/times Statement"

   Do, save, & print: Assignment 4

6. For HW #3, turn in Assignments 1 - 4. Make sure that your name & lab section is on all pages. Staple all pages together in the upper left corner. Make sure that your name, lab section, and the date are on the first page.

1. Read: "9. The if/then/else Statement"

   Do, save, & print: Assignment 5

2. Read: "10. The define-new-instruction/as Statement"

   Do, save, & print: Assignment 6

3. Read: "11. The while/do Statement"

   Do, save, & print: Assignment 7

   Do, save, & print: Assignment 8

4. For HW #4, turn in Assignments 5 - 8. Make sure that your name & lab section is on all pages. Staple all pages together in the upper left corner. Make sure that your name, lab section, and the date are on the first page.