1/9
Home / Museum Visits / The GreenMount School 1/23/17 /

Homemade Adding Machine

GMS_012317_4.jpg ThumbnailsMany 2nd and 3rd graders had never heard a dial tone!ThumbnailsMany 2nd and 3rd graders had never heard a dial tone!ThumbnailsMany 2nd and 3rd graders had never heard a dial tone!ThumbnailsMany 2nd and 3rd graders had never heard a dial tone!ThumbnailsMany 2nd and 3rd graders had never heard a dial tone!

Greenmount student and her mother showing a calculator made by the student's grandfather. It is similar to an Adiater, and I was able to teach them how it works.