Details of the Module

Here is the program, with the box replaced by the code it represents:

' Do the loop body ten times
FOR LINE = 1 TO 10
   
  LET NUM = LINE

  ' Print NUM stars in a row     
  PRINT
  FOR STARS = 1 TO NUM
    PRINT "*";
  NEXT STARS
   
NEXT LINE
'
END

This program can be simplified somewhat by noticing that the variable NUM is not really needed, since it always holds the same number as LINE:

' Do the loop body ten times
FOR LINE = 1 TO 10
   
  ' Print LINE stars in a row     
  PRINT
  FOR STARS = 1 TO ________
    PRINT "*";
  NEXT STARS
   
NEXT LINE
'
END