The image of the digital storage rack:
https://techverse.net/wp-content/uploads/2018/10/pexels-photo-1148820.jpeg
The image of a teacher teaching in the real classroom:
https://www.teachersmonthly.com/10-things-successful-teachers-do-every-day/
The image of the globe and the fork and knife:
https://m.media-amazon.com/images/I/41GBHFSgVuL.jpg