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Videoconferencing Alternatives: How Low-Bandwidth Teaching Will Save Us All

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By Daniel StanfordMarch 16, 2020

When we try to replicate classroom experiences in an online environment, it’s easy to think of video conferencing as our go-to tool for all sorts of learning objectives—and for good reason. Most of us have participated in a video conference at work or had a video chat with friends or family at some point. We like the idea of being able to see and hear our students while interacting with them in real time just like we do when teaching face to face. But there are two key factors that make this approach problematic. 

1. Bandwidth

High-bandwidth technologies work great for students who have newer computers, fast and reliable internet access at home, and unlimited data plans on their phones. For other students, courses that require frequent use of high-bandwidth technologies can limit their ability to fully participate in course activities. This can jeopardize their success in the course, create a sense of shame and anxiety, and leave them feeling like second-class citizens.   

2. Immediacy

The second factor, immediacy, refers to how quickly we expect our students to respond when interacting with us and with each other. Typically, we think of immediacy as a good thing. It’s baked into face-to-face learning, so it doesn’t feel like a limited resource. But one of the biggest advantages of online learning is that it can provide you and your students with more flexibility. When we require our students to be online at exactly the same time, we sacrifice one of the key benefits of online learning, and that can make an online course feel like more of a burden than it has to be. 

Shifting Our Thinking 

If we compare these factors on a coordinate plane with bandwidth on the vertical axis and immediacy on the horizontal axis, we can divide instructional technologies into four categories or “zones.” By reflecting on the unique pros and cons of each zone and the drawbacks that come with high-bandwidth/high-immediacy tools, we can identify ways to make our courses more flexible and accessible.   

A graph illustrating the breakdown of various online teaching tools and formats
Bandwidth Immediacy Matrix

The Green Zone: Underappreciated Workhorses

Starting with the green zone in the lower left, we have readings with text and images. These types of assignments may not seem exciting, but sharing readings with students in a consistent and organized way provides your online course with a very practical, solid foundation. Email and discussion boards also belong in this quadrant. 

Online instructors have been using these three tools—file sharing (for readings and such), email, and discussion boards—for decades. And while that might make them sound boring, you can create some fantastic instructional experiences with just these three tools. 

The Blue Zone: Practical Immediacy

Moving over to the lower right, we have low-bandwidth tools that can add immediacy to student interactions. If you’ve used Microsoft Office 365 or Google Drive, you’re probably already familiar with some of the features and benefits of collaborative document editors. These tools allow multiple people to edit and comment on the same document, spreadsheet, or presentation slides. Depending on how you structure your assignments, students could collaborate over an extended period of time, or they could go online at the exact same time and write and edit each other’s work simultaneously. 

When it comes to group chat/messaging, there are lots of free apps that can be useful in an educational setting. Slack and GroupMe are two popular examples. These mobile-friendly apps allow students to post text-based messages and images without requiring anyone in the group (including you!) to share their phone numbers. These tools allow students to communicate quickly and easily without scheduling an entire day around a formal video conference.

The Yellow Zone: Audio and Video on Demand 

Many instructors like to move in-class lectures and demonstrations online by creating screencasts. Screencasting allows you to record what’s on your computer screen—from PowerPoint slides to math equations to works of art—and add audio narration as you record.  Screencasting adds a human element to online courses because your voice creates a sense of presence that plain text can’t. 

Learning how to create pre-recorded lectures can be a little intimidating, especially if you don’t have any experience with video production. It can also be challenging to create concise screencasts that keep students engaged. Students are more likely to watch a series of shorter videos than a single, longer video, which is why I recommend instructors try to divide long screencasts into five-to-ten minute segments (whenever possible). If you’d like to explore a free screencasting tool on your own, Screencast-o-Matic is one that I’ve been fairly happy with. There are many other options available, so I’d recommend talking with the instructional technology specialists at your institution to see what they recommend.  

The right side of the yellow zone is home to asynchronous discussion with audio and video. If you’re not familiar with this concept, I’m referring to discussion tools that allow students to respond with audio and video instead of just text. One tool that’s been a leader for a long time in this multimedia discussion space is VoiceThread. While VoiceThread’s defining feature is its user-friendly approach to audio-based commenting, it can also be used to create narrated presentations with PowerPoints slides, images, and video. If you find yourself overwhelmed by the interface of a traditional screencasting tool, VoiceThread is worth exploring as a simpler way of recording online lectures and fostering discussions that go beyond plain text. 

The Red Zone: Natural Conversations at a Cost

The upper-right quadrant is reserved for tools that require both high bandwidth and high immediacy, and the best examples of this are videoconferencing tools like Zoom or Skype.  Videoconferencing is a great way to engage with students when they truly need to see and hear each other in real time. It can also be useful for online office hours, since it’s easier to feel connected and avoid misunderstandings when you have the benefit of tone of voice, facial expressions, and body language. 

Unfortunately, videoconferencing is one of the most inflexible and bandwidth-intensive activities we can ask our students to do. Before you rely on it too heavily, look at the other quadrants and ask yourself if there’s any other way to accomplish your learning objectives without it. 


I like to encourage faculty to start their online-course design process by imagining how they’d structure each week’s assignments and activities using only the tools in the green zone. Setting these types of strict limits at the start can make it easier to identify creative solutions. It also helps ensure that when you’re ready to consider tools in the other quadrants, you’re more conscious of the tradeoffs that come with moving from the lower left to the upper right areas of the chart. 

None of this is to say that videoconferencing is inherently bad or that it has no place in an online course. It’s simply a reminder that seemingly small (and sometimes unconscious) choices about the technologies we use can have a big impact on how inclusive and effective our teaching is. The more aware we are of this, the more we can ensure we’re choosing the right tools for the right reasons.    

Twitter: @dstanford LinkedIn: /dstanford