In: Advanced Math
Assisted Instruction:
Has to be in PERL SCRIPTING LANGUAGE with NO SUBROUTINES
Programming Exercise:
Write a program in PERL with NO SUBROUTINES to allow the user to
pick a type of arithmetic problem to study. An option of 1 means
addition problems only, 2 means subtraction problems only, 3 means
multiplication problems only, 4 means division problems only and 5
means random mixture of all these types.
(Computer- Assisted Instruction) The use of computers in education
is referred to as computer- assisted instruction (CAI). Write a
program that will help an elementary school student learn
arithmetic operations. Use a Random object to produce two positive
one- digit integers. The program should then prompt the user with a
question, such as
How much is 6 times 7?
The student then inputs the answer. Next, the program checks the
student’s answer. If it’s correct, display the message "Very good!"
and ask another multiplication question. If the answer is wrong,
display the message "No. Please try again." and let the student try
the same question repeatedly until the student finally gets it
right.
Modifying Exercise: (Computer- Assisted Instruction: Reducing
Student Fatigue) One problem in CAI environments is student
fatigue. This can be reduced by varying the computer’s responses to
hold the student’s 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.
Modifying Exercise (Computer- Assisted Instruction: Monitoring
Student Performance) More sophisticated computer- assisted
instruction systems monitor the student’s performance over a period
of time. Count the number of correct and incorrect responses typed
by the student. After the student types 10 answers, your program
should calculate the percentages that are correct. If the
percentage is lower than 75%, display "Please ask your teacher for
extra help.", then reset the program so another student can try it.
If the percentage is 75% or higher, display "Congratulations, you
are ready to go to the next level!", then reset the program so
another student can try it.