STEP 15: To change a specific grade, first we need to find its index in the list.

• Go to and drag Get Index of Value into change_grade().
• Change my_var to index. Change my_list to list_of_grades. Change my_param to grade.
• Drag Set Value at Index onto the next line in change_grade().
• Change my_list to list_of_grades, change 0 to index, and change my_var to change.

To navigate the page using the TAB key, first press ESC to exit the code editor.