Exercise 1
Start with the empty world and fill it with the bricks as shown in the picture below...
Exercise 2
Start with the empty world and build the wall as high as possible as shown in the picture below...
Exercise 3
Start with the empty world and build a pyramide as shown in the picture below...

Click the following link in Safari on your iPad to download the solution: exercise-3.karel

Click the following link in Safari on your iPad to download the solution: exercise-3.karel
Exercise 4
Build the chimney around Karel standing in the middle of the world, so the Karel is not seen at all. Look at the picture below...