Modifying Exercise:(Computer-Assisted Instruction: Reducing Student Fatigue) One problem in CAI environments is student fatigue. This can be reduced by varying the computers responses to hold the students attention, so that various comments are displayed for each answer as follows: Possible responses to a correct answer: Very good!

Excellent!

Nice work!

Keep up the good work!

Possible responses to an incorrect answer: No. Please try again. Wrong. Try once more. Don't give up! No. Keep trying. Use random-number generation to choose a number from 1 to 4 that will be used to select one of the four appropriate responses to each correct or incorrect answer. Use a switch or if statement to issue the responses.

Program is PERL SCRIPTING

Please make the program Simple..