Look at the code above. It is mostly filled out, but there are a few parts that are missing. Scroll to the right of the code and you should see comments (instructions after a #) to tell you what you need to do for each line of missing code
The final code should be a red sphere with a 0.5 meter radius at the position (3,4,2). When you are done, you can hit the menu button in the top left of the code and scroll down to share. You will copy this link and turn it in on the Google Classroom. If you need a reminder for how to do this, watch this video