In the South African context, learners are very likely to access digital content on a mobile device rather than a laptop/desktop. The limitations of these devices have to be considered when you are compiling content. One limitation, for example, is the physical size of a cellphone screen. For the most part, these are very small. Sending a .PDF document with all the content can be difficult to engage with.
Another key limitation is data usage. While Video content is always a great option, this is often not viable and depends largely on the context within which you teach. Even when videos are used, the general consensus is that these videos should be short (6 - 12 minutes) and supplemented with additional resources rather than just being a video replacement of your lesson.
Navigating content on their own can be challenging for learners, especially when they first engage with this new type of learning. A platform that makes it easy for learners to navigate content is an essential part of designing a flipped classroom environment.
An example of such a platform can be the use of Wakelet. One of the courses on this site looks at this in more detail: WebQuest with Wakelet. Wakelet is very easy to use and a great platform to glue together and arrange a variety of digital resources in order to build content knowledge.
An emerging trend is to create Virtual Classrooms using Google Slides (review the Virtual Library of the Foundation Phase site for an example of this). This course builds on the idea of a Virtual Classroom with the focus of creating a self-navigating learning platform (an expanded version of the Flipped Classroom). In general, the benefit of Google Slides vs Wakelet is having greater freedom and flexibility in design. With the greater flexibility however is some added complexity.