“There are two separate channels (auditory and visual) for processing information; Each channel has a limited capacity” – Mayer
It is important to provide visual forms of representation to aid the learning process, here are some ways to make those graphics.
Powerpoint can be used to crop, copy, and combine photos. You can add artistic effects, picture styles, text boxes, shapes, and smartArt to photos.
Photo by Haseeb Modi on Unsplash edited by Charlotte Junker on Microsoft PowerPoint.
Brian Mathers
A great recourse for cool graphics, welcome to use all images as long as you credit @bryanmathers and don’t change the image in any way.
References
Mayer, R.E. (2009). Multimedia Learning. Cambridge University Press.