A random image picker

So the schools got cancelled in our country because of the coronavirus and we decided to carry on teaching online. We will be using Google Hangouts and sharing screen with the students. I was wondering if I could find a programme (a simple image viewer) which would allow me to randomly open images. I teach little kids and I want to be able to show them a picture of, say, Jack, and another picture of, say, a swimming activity, so that they could say a sentence "Jack is swimming." Obviously I need both images to open at the same time and both at random. I was thinking that I would prepare in advance two separate folders, one for the nouns and one for pictures with verb activities.
Do you have an idea how this could be done quickly and efficiently? Thank you!

nightoul said:

So the schools got cancelled in our country because of the coronavirus and we decided to carry on teaching online. We will be using Google Hangouts and sharing screen with the students. I was wondering if I could find a programme (a simple image viewer) which would allow me to randomly open images. I teach little kids and I want to be able to show them a picture of, say, Jack, and another picture of, say, a swimming activity, so that they could say a sentence "Jack is swimming." Obviously I need both images to open at the same time and both at random. I was thinking that I would prepare in advance two separate folders, one for the nouns and one for pictures with verb activities.
Do you have an idea how this could be done quickly and efficiently? Thank you!

There are many apps that will allow separate instances for items, including Windows Photo Viewer; the problem is, there are often too many clicks/right clicks to invoke each instance and, each instance will open on top of each other...,

it may be best to arrange the images in a folder in the order you wish to show them, then use the ►/arrow for slideshow feature.

That sounds reasonable thanks! And I could every now and then rename the files so that they are in random order.