Does anyone know what these films are?

[quickseller77836]

[sonomabarn67]

School slide shows.

[maxine*j]

Yep.  There is even one titled "The Slide Film in Teaching," a guide for the teacher in using the other ones in the classroom.

[argon38]

They date from the mid- to late-1940s. This 572-page book will tell you more about educational filmstrips than any sane person would probably wish to know:

https://archive.org/stream/filmstripsdescri00falcrich#page/n5/mode/2up

[quickseller77836]

Awesome thanks for all the replies