How to make a sandwich. According to a robot programmer. [me*]

we are learning how to make a scientific method. Miss A ,our teacher, gave us a task on telling her how to make a sandwich as if she was a robot. this is what you need to say and what not to say

this is how not to tell a robot to make a sandwich

1. wash hands
2. grab bread from the bag
3. spread butter on the bread
4. add marmite on top
5. close the sandwich
6. cut it half
7. eat

This is what to say instead

1. go to the sink
2. turn on the cold tap
3. get your hands wet in the water
4. Squirt one pump of soup on your palms
5. rub your hands together
6. rinse the soap off your hands with water
7. turn the tap off
8. grab a towel 
9. dry your hands on the towel
10. open the bread bag
11. take two slices of bread from the bag
12. place the bread side by side on the plate 
13. pick up the handle of the knife
14. open the butter
15. stab the butter near the edge with the blade  
16. put the butter on the knife blade
17. spread the butter evenly on one of the biggest sides of the bread
18. put down the knife
19. replace the lid on the butter
20. pick up the knife by the handle 
21. open up the marmite 
22. get a little bit of marmite on the knife 
23. spread it evenly on the buttered piece of bread
24. put the knife down
25. replace the lid on the marmite 
26. grab the unbuttered piece of bread and plase the biggest side down on top of the buttered piece.
27. pick up the knife by the handle
28. cut the sandwich in half
29. enjoy

Why is it good to have detailed method

it is good so that we can understand the instructions and so we don't muck up.

*i'm not actually a robot programmer