GradeMatic 100

Year of introduction 1983
Function Education
Model Number  
Power 2 LR44 batteries
Original Price  
Photo credit Mark Bollman

    The GradeMatic 100 was CI's first foray into calculators that could compute student grades.  It uses standard or custom-defined grade scales, and includes a timer.  It was superseded by GradeMatics 200, 3000, and 4000.  (Why the tenfold inflation of model numbers?  Good question.)

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