Here, I used my existing logical turtle and added a functinal part to it. I embedded the following code into the logical turtle to display the grade based on the score.
def computegrade(score):
if score >= 9 :
return 'A'
elif score >= 7 :
return 'B'
elif score >= 5 :
return 'C'
elif score >= 3 :
return 'D'
elif score < 1 :
return 'F'