Today's guest blogger is Audrey Watters, a technology journalist specializing in education technology news. She has read all 100+ pages of the National Education Technology Plan released by the U. S. Department of Education last November, and she has summarized it below.
This history of rubber is an example of what at the time was cutting edge technology for classroom teachers to use in the 60's & 70's. Looks very similar to early slide show presentations done on the computer in the 90's.