The Legislature recognizes the need to provide classroom instructors and other faculty with more time to instruct and to provide the means for them to utilize their professional knowledge and skills more effectively in the educational programs of the public schools. It is the intent of the Legislature to authorize the employment of instructional aides in order that classroom instructors and other faculty may draw upon the services of instructional aides to assist them in ways determined to be useful in improving the quality of educational opportunities for students.