By: Julie Jacobs, Jana King, Dana Simionescu, Tianhong Shi

Overview

A recent scenario with our course development team challenged our existing practices with lecture media. Formerly, we had encouraged faculty to include only slides with narration in their lecture videos due to concerns about increasing learners’ cognitive load. Students voiced their hope for more instructor presence in courses, and some instructors started asking about including video of themselves inserted into their lectures. This prompted us to begin thinking about instructor presence in lecture videos more deeply: why were we discouraging faculty from including their faces in lecture videos? While our practices were informed by research-based media theory, we also recognized those theories might be outdated. 

We began to explore the latest research with the following question in mind: does visual instructor presence in lectures increase extraneous cognitive load in learners? We use the phrase “visual instructor presence” to refer to lecture videos where an instructor’s moving image is seen giving the lecture, composited together with their slides. This technique is also commonly referred to as “picture-in-picture”, as seen in the image below.

Image 1: Adam Vester, instructor in College of Business, in his lecture design for BA 375 Applied Quantitative Methods.

A task force was created to review recent research on visual instructor presence and cognitive load, specifically in lecture-type videos. Our literature review included a look at leading multimedia learning scholar Richard E. Mayer’s newest group of principles. We also reviewed more than 20 other scholarly articles, many of which were focused on learner perception, motivation & engagement, and emotion. 

Findings

According to recent work in multimedia learning, research in this area should focus on three areas, namely learning outcomes (“what works/ what does not work?”), learning characteristics (“when does it work?”), and learning process (“how does it work?”) (Mayer, 2020). Below are our conclusions from the 23 research articles we reviewed regarding instructional videos, attempting to answer the above questions of “what works”, “when does it work”, and “how does it work”.  

  1. This review of recent literature shows no evidence that visual instructor presence increases extraneous cognitive load. 
  2. Students tend to prefer lectures with visual instructor presence – they report increased satisfaction and better perceived learning, which can boost motivation and engagement. 
  3. While some studies find no difference in performance outcomes when visual instructor presence is utilized, others found increased performance outcomes with visual instructor presence. Proposed explanations: embodiment techniques such as gestures, eye contact, and body movement which fosters generative processing (the cognitive processes required for making sense of the material); social cues can help direct the learners’ attention; increased motivation (as per point 2 above) contributes to better learning. 
  4. The effects may depend on the specific type of visual instructor presence (e.g., small picture-in-picture, green-screen, or lightboard) and the characteristics of the content (complex/difficult vs simpler/easier). 

Recommendations

Based on these findings, our team has decided to remove the default discouragement of instructors wishing to use picture-in-picture in lectures. If an instructor is interested in having their visual presence in the lectures, we encourage them to discuss this option with their Instructional Designer and Lecture Media Coordinator to determine if this style is a good fit for them and their content.

Image 2: Bryony DuPont, associate professor of Mechanical Engineering, utilizing visual instructor presence in her lecture design for ME 382 Introduction to Design.

We recommend considering the following points:

  • What is their presentation style? Do they tend to spend a lot of time talking over a slide or is there a lot of text or other action (e.g. software demo) happening in the video? If there’s a lot happening on the screen, perhaps it’s better to not put their video on top of it (the instructor video could be placed only at the beginning and/or end instead).
  • What type of content? Is it simple or more complex? For more visually complex content, a lightboard or digital notation without picture-in-picture may work better, to take advantage of the dynamic drawing principle and the gaze guidance principle. 
  • Is it a foreign language course? If so, it’s likely helpful for the learners to see the instructor’s mouth and body language. 
  • Is the instructor comfortable with being on video? If they’re not comfortable with it, it may not add value. This being said, our multimedia professionals can help make instructors more comfortable in front of the camera and coach them on a high-embodied style of lecturing. 

Since implementing these guidelines and working with an increased number of lectures with visual instructor presence, we also noticed that it works best when the instructor does not look and sound like they’re reading. Therefore, for people who like working with a script, we recommend practicing in advance so they can sound more natural and are able to enhance their presentation with embodiment techniques.

We would love to hear about your opinions or experiences with this type of video. Share them in the comments!

For a detailed summary of our findings and full citation list, please see the full Literature Review.


Audio in Online Learning banner.

Audio is a term we all understand on some level. Commonly we think of audio as the transmission, reception, or reproduction of sound. Audible sound is what we hear. So, when we consider audio as an element of course design we are thinking about how sound can be used to communicate or support learning in an online course environment. Integrating audio in course delivery can be quite powerful if done well.

Perhaps the most common method of using sound in an asynchronous online course is via narrated lecture. The narrated lecture is typically a voice over a slide presentation or screencast. It can be an essential tool of instruction if designed effectively.

Another way the voice of an instructor can be incorporated into a course is via audio feedback on student assignments. These are short audio recordings that have been found to help build a sense of instructor presence in an online course.

Highly focused use of audio is also utilized in subjects where audio is, in essence, the topic at hand. Here we are considering language, music, and media arts courses as examples.

Other valued voices are often brought into the online learning experience via guest interviews in either audio or video format. Not to be left out, the voices of students are increasingly present in online course via tools such as VoiceThread and university provided video portals such as Kaltura Media Space. And with tools such as Zoom recording audio interviews and voice overs is easier than ever. With the availability of media platforms such as YouTube, Vimeo, Amazon Prime, Audible, and Apple Music and Podcasts the ability to bring external audio resources into the online experience seems almost limitless.

Audio is also used as a supporting resource for text-based content in online courses. In this case screen readers may typically provide the audio support. When using audio as a primary learning resource it is necessary to provide text-based transcripts as accessibility options. A fuller description of making audio accessible can be found at the W3C website.

The examples listed above are common ways we integrate audio elements into online learning. Are there other perhaps different ways we might consider? In the next few paragraphs we will explore a few ideas of how we might use audio in specialized ways in course design.

Specialized Audio Use

Orientation & Review Audio

Audio is a great tool to use when smaller segments of media should be used to orient students to a part of an online course. Think about short, more ephemeral, voice messages that can be easily produced and updated from term to term as the course changes. These audio segments need not be highly produced but should be of good quality. This type of audio segment reconnects students with the instructor via voice.

Listen to the orientation audio sample below that was used in an online course: RE 270 – Outdoor Recreation Resources, Behavior and Values | Module III Orientation by Dr. Craig Rademacher; Northern Michigan University c. 2012. (00:02:56).  [download orientation audio transcript  from Temi.com]

Similar short segments of audio may be used to review sections of content. The review audio may be produced by instructors or students. These audio reviews may be used in preparation for an exam, major project, or collaborations within the course. The goal of such reviews may vary but certainly one goal would be to re-focus the listener to the task at hand while providing timely tips or learning objectives.

One of the things you may have noticed about the audio clip above is the integration of music to the orientation message. Purposeful music selections can support the emotional feel of a course or module being introduced. Music can also serve as an audio cue, or audio branding, for a course. So, selecting audio stingers, or music introductions, can highlight that a particular message or topic is coming or reinforce an emotional tone if carefully planned.

The primary benefit of using audio for orientation and review is that audio is less production intensive making it a quick way to provide feedback. Audio is also fairly easy to edit with a free cross-platform audio tool such as Audacity.

Narrative

The oral traditions of learning go back centuries. Prior to print, learning was interwoven in spoken traditions, legends, and cultural stories. Today story remains a potent vehicle for learning. As you might imagine audio is a great vehicle for story.

An example of this is an Oregon State University political science course titled Governing after the Zombie Apocalypse which was designed and taught by Dr. Rorie Solberg. The story that underpins this course is that a natural disaster has caused the breakdown of the U.S. government. In response citizens must create a new government including a bill of rights and constitution. Students become the citizens creating that new government taking into account marginal populations such as the surviving zombies which are called “blues”due to their virus-caused color.

Audio is used creatively in the course by periodically inserting radio broadcasts about odd happenings around the country. Although not the heart of the effort of the course, these audio presentations, really imagined radio newscasts, provide situational tenor and decision points as students go about creating a new government. Listen to a segment of a mock radio broadcast below.

Mock radio broadcast excerpt: Story by Dr. Rorie Solberg. Produced by Oregon State University Ecampus. Voice acting credit: Warren Blyth (00:02:04)

This segment highlights how audio can be used to shape and carry a narrative through an online course. You might imagine how different narrative audio presentations may support history, literature, or science courses.

Soundscapes & Nature Sounds

Experiencing authentic places or environments is believed to be a valuable form of learning. This idea is a driving force behind field-based learning and experiential learning. Audio soundscapes provide access to authentic acoustic environments that can support online learning about the context of an environment. The environment may be urban, rural, or perhaps in a wilderness-like setting. Soundscapes may also be used to create sense of cognitive and emotional world building that can be used in instruction. Soundscapes typically feature a molar perspective of the acoustic environment.

Listen to an example of such a soundscape titled Elk Rut and Rain Shower — Rocky Mountain National Park in Colorado by Gayi immersions (00:28:03) at SoundCloud. (link will open in a new tab)

Other, more specific sounds of nature are potentially positive resources for online instruction. Below is a sound sample of the call of a common raven. Listen to the raven’s call.

Audio recorded in the Beaver Basin Wilderness at Pictured Rocks National Lakeshore in Michigan in 2010 | Craig Rademacher. (00:00:26)

Now imagine how this simple recording may be utilized in a course. It might be used to help identify ravens from crows in an ornithology course. Perhaps this audio clip could be used to help communicate a sense of isolation for listeners studying wilderness values. Or, perhaps it could be used to introduce the poem by Edgar Allen Poe titled The Raven. In each case the audio would be used intentionally to deepen the context or experience of the learner.

Fidelity Matters

Sound quality is an important factor when selecting and using audio in an online course. Audio files need to be of sufficient quality to clearly indicate what you are expecting students to hear. Poor audio, or a confusing sound recording, is experienced as distracting and student will likely tune out. Recording and editing audio does require some knowledge and practice. And there are many places where you can learn to produce audio. LinkedIn Learning offers courses in audio production, podcasting, and even how to select a microphone. So, if you are interested give it a try.

If you are not inclined to produce your own audio content there are resources available where you can find high quality audio for use in courses. Some of these resources are royalty free. Others may require licensing of audio for use.

Final Thoughts

We have reviewed how audio is commonly used in online courses and how we might think about new ways of integrating audio. As you explore the links to resources below start to think about your next course design. How can you augment the text and video you normally use with audio? How might you leverage voice, narrative, or soundscapes to connect online students to the context, authenticity, and humanity of learning? You might want to experiment with audio at first. Start small. If it works, then you will have truly found a sound idea for online course design.

Select Audio Resources

Royalty free online resources:

Podcast Resources
There are several ways to find audio podcasts to review for inclusion in a course. Apple Podcasts is a dominant resource in this area. Apple streams over 750,000 podcast shows with over 20 million episodes. Google Play Music is another good resource. Podcast feeds can also be found simply by browsing for podcasts online.

Audiobooks
Audiobooks are found in many online book seller sites such as Amazon (Audible.com). Additionally some more specific sites such as audiobooks.com also provide resources.

Soundscapes and Nature Sound Resources

 

**Special thank to Matt Djubasak and Chris Lindberg for their contributions to this post.

One of the common ideas instructors have to bolster student-content engagement in a course is to add media. Podcasts are a type of media element that can support learning in a number of ways. It is relatively easy to link to an established podcast. Planning and producing your own podcast is more involved. This post explores the idea of producing a podcast for your online course. Is it something you should consider?

Prior to diving into the value and purpose of podcasts it is useful to understand what a podcast is…and what it isn’t.

The term podcast is a portmanteau of “iPod” and “broadcast”. This blended word says a lot because a podcast is a digital recording that is produced for distribution to a computer or mobile device (e.g., the iPod in 2005). Podcasts are distributed via RSS feeds that users subscribe to. Podcast directories, like iTunes®, allow users to find and subscribe to a podcast. Generally podcasts are episodic and often serial in nature with new episodes delivered automatically to subscribed users as the new content becomes available.

So, you can see a course podcast is more than an audio or video file embedded in an online course that students click on to engage with. In its ideal form, a podcast is a method of delivering course content to a learner’s mobile device via the podcast subscription process. Learners can engage with that content at any time and any place they have their mobile device.

Banner showing cover art from four OSU podcasts
Sample cover art from select Oregon State University podcasts.

Audio, Video, or Enhanced Podcasts

There a three primary formats of podcasts. Links to examples of each type of podcast are provide at the end of this article.

  • Audio: This type of podcast distributes digital audio files to listeners
  • Video (vodcast): This podcast type distributes a digital video file to podcast watchers.
  • Enhanced: The enhanced podcasts distributes a media file that displays images synchronized with audio. 

Instructional Use & Value
With mobile devices pervasive in college audiences, being able to distribute educational content to those devices is very attractive. The use of podcasts in online learning environments is common and spans many disciplines (Supanakor-Davila & Bollinger, 2014). Podcasting has also been applied in traditional college courses (McGarr, 2009) and in graduate teaching (Luna & Cullen, 2011). Fernandez, Sallan and Simo (2015) recognized podcasting as a major phenomenon in education with the primary purpose being the distribution of course content.

The purpose of podcasts in instruction varies by podcast type and author. Podcasts can be used to inform, provide analysis, develop skills and knowledge, motivate, mediate and more (Carvalho et al., 2009). Common types of podcasts produced for educational use include:

  • Informative: Description fo concepts, analysis, synthesis, readings etc.
  • Feedback: Audio or video feed back for student work or group work.
  • Guides: Helpful media content addressing field or practical work, studying, group dynamics and reflective or experiential learning.
  • Authentic: Original media contend such as news, interviews, radio programming and others.

The production of podcasts can be faculty, student, or outside expert driven. Like any good media production it should have excellent production value and a structure to hold attention and enhance learning. Since podcasts are serial in nature shorter media segments are encouraged. Episodes of 15 minutes or less will likely promote better engagement with podcast content. Although a very engaging podcast can be longer.

The benefits of podcasts in online courses are tied to the nature of the media and distribution process. Audio podcast are popular because they can be listened to while doing other tasks. Additionally the speed of media playback can be controlled by the listener. Video podcasts are ideal when visual support is necessary to foster understanding of the course content. As mobile media podcasts may be used to facilitate and support remote field work by students or even tours of remote places. The ability to watch or listen to podcasts via WiFi or downloaded and used on-demand makes podcast a convenient asynchronous media adjunct to an online course.

So, as a course content delivery mechanism podcasts are a unique tool if applied thoughtfully. Understanding podcast types, formats, and their delivery mechanism helps you make better decisions about podcast application.

Research in Action sound wave image.
Visit the Research in Action podcast website at Oregon State University to listen to this episode and see how transcripts are shared.

Accessibility
Making content accessible when using podcast requires some planning and also reflects the nature of the podcast media you plan to use. For audio podcasts it is important to provide transcripts to support all learners. 

Video podcasts are best paired with well synchronized captions. When planning video podcast you may also want to think about providing audio descriptions of content that provides important information that is shown as a visual in the video.

Podcast Consumers: Is This Your Audience?
This is an important question. If you produce a podcast are learners likely to engage with it? Is podcasting on the radar of potential learners?  The Edison Research survey on The Podcast Consumer (2018) indicates that 26% of those surveyed listen to podcasts monthly. The podcasting audience by age shows that  30% of  12-24 year olds, 32% of 25-54 year olds, and 13% of 55 + year olds have listened to a podcast in the last month. Male and female listeners are about evenly split in podcast engagement. Smartphone and other mobile devices make up 76% of podcast listening devices with computers making up 24% of podcast engagement. The top three locations of podcast engagement are at home (82%), followed by in a car/truck (54%), and walking or on foot (41%). Podcasting seems well suited to reach audiences that are remote, mobile, and consume media in an asynchronous fashion. These are also common descriptors of online learning audiences.

A Podcast For Your Course?
If a podcast sounds interesting to you contact your instructional designer at Ecampus. They can help you understand more about this mobile media opportunity and help think through strategies for effective podcast use. They will also work with Ecampus multimedia developers to help facilitate the production and distribution of your podcast. 

So, what do you think? Can you imagine your students engaging with course content as a podcast? Could a podcast work in your online course?

Links to sample podcasts in iTunes

Notes: 

  1. Enhanced podcasts are best viewed on a mobile device although they can be viewed in iTunes once downloaded.
  2. Prior to 2017 educational podcasts were distributed by Apple via iTunes U. With changes in iTunes educational podcasts now appear in the podcast section of iTunes and iTunes U was discontinued.


References

Carvalho, A. A., Aguiar, C., Santos, H., Oliveira, L., Marques, A., & Maciel, R. (2009). Podcasts in higher education: Students’ and lecturers’ perspectives. In A. Tatnall & A. Jones (Eds.), Education and technology for a better world (pp. 417-426). Boston: Springer Berlin Heidelberg. doi:10.1007/978-3- 642-03115-1_44.

Fernandez, V.; Sallan, J.; Simo, Pep. Past, present, and future of podcasting in higher education. In L., Many & Y. Zhao (Eds.). Exploring learning & teaching in higher education pp. 305-330. Berlin: Springer, 2015,.

Luna, Gaye, & Cullen, Deborah. (2011). Podcasting as Complement to Graduate Teaching: Does It Accommodate Adult Learning Theories? International Journal of Teaching and Learning in Higher Education, 23(1), 40-47.

McGarr, Oliver. (2009). A Review of Podcasting in Higher Education: Its Influence on the Traditional Lecture. Australasian Journal of Educational Technology, 25(3), 309-321.

Supanakorn-Davila, S., & Bolliger, D. (2014). Instructor Utilization Of Podcasts In The Online Learning Environment. Journal of Online Learning and Teaching, 10(3), N/a.

Webster, T. (2018). The Podcast Consumer. Retrieved from http://www.edisonresearch.com/podcast-consumer-2018/

 

The multimedia developers at Ecampus have the tools and experience to quickly generate cartoons for your course, illustrating hard to describe (or photograph) concepts with a dash of charm. Here are three recent examples of the quick cartoons we can make – each completed in about a week – with some insights into the development process.
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Some instructors are surprised when they first hear that they should begin preparing for a recorded lecture by writing a script. Some instructors believe that writing a script will take a lot of time, and that using a script will make the finished recording sound like they are reading, and that they should approach their online lectures the same way they do the on-campus ones – without a script.

Preparing a script for an online lecture is an essential step, however, that actually helps to save time and create a higher quality finished lecture.

So why script your lectures?

  1. To Save Time
      You will be surprised how much time and frustration you will save yourself when you are recording lectures. You won’t have as many flubs-ups or wonder if you actually covered everything you were planning on covering only to discover you didn’t. If you do mess up, it’s easier to re-record.
  2. To Keep Online Lectures at an Ideal Length and Quality
      A script will also help you keep track of time. We recommend that online lecture be no longer than 20 minutes (and shorter is better!). This time limit is very hard to achieve when you don’t know how long you plan on talking, or if you go off on a tangent.
      One trick you can do so you don’t sound like you are reading a script is writing your script in a less formal manner. How will you know if it’s less formal? Read it out loud after you write it! If you find yourself getting stuck on words or just find it hard to read, try restating the sentence as though you are just talking with a friend or a student in your office. Also, practice reading your script two or three times before you record; this will make the whole recording process go more smoothly.
  3. To Make Lectures Accessible
      An added bonus to scripting your lectures is that it would be transcribed for students with documented disabilities, or for those for whom English is a second language.

On-campus and online courses meet the same learning outcomes, but the online learning environment is different from the face-to-face environment. Writing a script as the first step in creating your online lecture content is a great way to help you create content that will be effective for online students.

A great example of a lecture that was recorded with a script was done by Julia Goodwin for her HST 104 course World History I: Ancient Civilizations, here is her lecture for week 8