Hi Rebecca,
For visuals I am assuming you are using the commonly used forms such as videos, PPs, etc. In addition, I have found that I assign my students to bring into class visual examples of course content. In other words, I am striving for application of course content through visual referencing. This seems to really help with retention of content because the students are drawing mental pictures of the content in relation to visual images they have seem, recorded and brought into class that represent the content.
Hope this helps. I will be glad to discuss this further with… >>>