Use of technologies in the classroom has come a long way over the past century and a half. Please click on the link below for a brief timeline:

 

Timeline of Technology in Classroom: K-12

 

References

A Brief History of the Evolution of Classroom Technology. (2016). Retrieved from Ed Tech Magazine: https://edtechmagazine.com/k12/article/2016/02/brief-history-evolution-classroom-technologies-infographic