Tag Archives: Screencast

November 19, 2014, 3:57 pm

Making screencasts: The working example

This is the last of three videos that I made for the An Introduction to Evidence-Based Undergraduate STEM Teaching on Coursera. Here, I describe how I make what I call a “working example” video, one in which I am working out an example as if at a whiteboard, only on an iPad screen.

As with everything, there is more than one way to do this. I used to use a Wacom tablet and the Flysketch app to annotate PDF’s and record the action. I’m more iPad-centric these days but even now my methods are still a work in progress. Since the making of this video, I’ve tried to make a couple of working example videos for my classes, but the Doceri window that appears on the Mac has a lot of flicker on it, so much that it’s distracting when viewing the final product. I don’t know why this is the case, but it’s led me to consider other workflows, including recording the entire screencast on Doceri…

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November 11, 2014, 1:50 pm

Making screencasts: The talking head

Here is the second video in the three-part series that I did for the An Introduction to Evidence-Based Undergraduate STEM Teaching on Coursera. This is one gets under the hood about how I make the videos I call “talking head” videos — where it’s just a voiceover and some lecture slides running. The talking head video is very similar to a traditional lecture or a conference talk, so for those instructors out there who are looking to transition to a flipped learning model, or make additional video content available to students and are looking for the simplest place to start, this would probably be it.

I should note that I probably overcomplicate this process. In PowerPoint and Keynote, for example, you can record a voiceover while the slides are playing — just use the built-in computer microphone, and there’s no additional hardware or software needed. I’m just a stickler for good…

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April 3, 2012, 6:22 am

Udacity CS101: What’s Been Good

Sorry to be gone for a few days without posting. It’s been basically triage here as we move toward the end of the semester. It’s also nearly the end of the CS101 course at Udacity (whose courses come in “hexamesters”, six times a year), so this week I’m planning on giving a sequence of posts that sum up my experience.

I almost didn’t do the CS101 course at all. I was waiting for Stanford University’s similarly-named course, but its repeated delays compelled me to look into Udacity. (I’m wondering if those delays, which were explained as legal and business issues in Stanford’s emails, had something to do with Udacity’s and Stanford’s courses being similarly named and similarly timed and potential legal action between those two orginzations.) I was really motivated to learn Python and tired of waiting on Stanford’s course. I wasn’t sure what to expect from a startup that wasn’t formally…

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September 20, 2011, 8:00 am

Flipping the college classroom

This Thursday (Sept 22) at 2:00 PM EDT, I’ll be giving a webinar for AMATYC called “Flipping the college classroom”. This is all about the flipped, or what I call the “inverted”, classroom — what it is, why it could be a better model for student learning, how it’s been implemented at the college level, and tools and strategies for flipping your own classroom. This is a subject near to my heart, as CO9′s readers know, and it’ll be fun to talk about it. It’ll be my first-ever webinar, and I think it’ll be an interesting experience, even as I pray for no massive tech screwups.

Although it’s an AMATYC event, registration is now open for the general public. Just click here and register yourself as a visitor.

August 23, 2011, 8:00 am

Three things I learned at ScreencastCamp

Last week, I had the chance to attend ScreencastCamp, a weekend event put on by Techsmith, Inc. just down M-6 in Okemos, Michigan. What a great experience! Techsmith develops Camtasia, my go-to software for all screencasting needs, as well as several other great products like Jing and SnagIt. I’ve been a fan of their products for a long time, and it was great to spend time getting to know the people behind them.

ScreencastCamp was an unconference, where there is no set agenda beforehand. Participants just come with an idea of what they want to learn, and then either put on a session or request one. There were about 40 of us participating, mostly from education but with a healthy contingent from the corporate (training) world as well. Amazingly, although this is a relatively small number of participants, all the session slots for Saturday and Sunday filled up almost immediately as people…

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June 7, 2011, 2:25 pm

How I make screencasts: The whiteboard screencast

In this post, the fifth in a series of posts on how I make screencasts, I’m going to focus on what I call the “whiteboard” screencast. This is a screencast where I am demoing some sort of concept or calculation by writing things down, rather than clicking through a Keynote presentation or typing something on the screen. It’s intended to mimic the live presentation of content on a whiteboard, hence my name for it.

Of course the most well-known examples of “whiteboard” screencasts are the videos at Khan Academy. In the unlikely event you haven’t seen a Khan Academy video before, here’s one:

I do whiteboard screencasts fairly often. I use them sometimes for presenting hand calculations for students to watch and work through before class, and sometimes (probably more frequently) I use them to create additional examples for things I’ve covered in class. This is a really powerful use…

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May 31, 2011, 6:25 am

How I make screencasts: Lecture capture, part 2

Now that school’s out, I’m going to pick up where I left off (two months ago!) in my series on how I make screencasts. So far I’ve made three posts in this series. In the first post we talked about what a screencast is, exactly, and why anybody would want to make one. In the second post, we saw how the elements of careful planning make screencasting a successful experience. And in the most recent post, we took a look at using Keynote (or PowerPoint) to create a lecture-capture screencast.

Before I talk about the other kinds of screencasts I make, I’m going to take this post to describe how I use my go-to tool for screencasting: Camtasia for Mac, specifically how I use it to make lecture capture videos when I’m not using Keynote. (Full disclosure: I was on the beta-testing team for Camtasia for Mac and got a free license for the software for my efforts. But I can definitely say that I’d …

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March 25, 2011, 7:22 pm

How I make screencasts: Lecture capture, part 1

Keynote (presentation software)

Image via Wikipedia

Sorry for the time in between posts lately. It’s been an odd mix of attending conferences, getting ready to attend conferences, and spending time in the hospital being treated for skin infections picked up at those conferences for the last couple of weeks. Long story. Let’s talk about something more pleasant than cellulitis, namely screencasting.

So far I’ve posted about the general idea of screencasting and what I do with screencasts, and I’ve posted about the all-important planning phase of screencasating. Now I’m ready to start getting to the nuts and bolts. Of the three kinds of screencasts I do, probably the simplest is the lecture capture. In a lecture capture I am simply recording a slide presentation or a Prezi with a voiceover. Here’s an example, which is an overview of the first…

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February 28, 2011, 8:00 am

How I make screencasts: Chapter 0

Photo: http://www.flickr.com/photos/olaerik/

Since I started to put serious amounts of time and effort into screencasting last summer, I’ve gotten a lot of requests to blog about how I go about making these things. Starting with this post, I’m going to do a multi-part series here about making screencasts — or at least how I make screencasts, which is a long way from perfect or canonical, but it’s what people asked for! I hope it’s useful for people who are interested in this kind of thing and need some pointers; and I hope too that those with more experience and better ideas than I have can share.

First, let’s start with a few FAQ’s.

Q: What is a screencast?

A: A screencast is a video of stuff that is happening on your computer screen. There is often, but not always, some kind of voiceover happening in…

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October 21, 2010, 10:06 am

This week in screencasting: The polar express

It’s been a little quiet on the screencasting front lately, but in the next couple of weeks my colleague teaching Calculus III will be hitting material for which I volunteered to provide some content: namely, using MATLAB to visualize some of the surfaces and solids used in multiple integration. Yesterday, I finished two of these. The first on is on polar coordinates and polar function plotting in MATLAB:

And the second one is on cylindrical coordinates and plotting two-variable functions in cylindrical coordinates:

MATLAB doesn’t provide a built-in function for plotting in cylindrical coordinates. Instead — and this is either ingenious or annoying depending on how you look at it — to plot something in cylindrical coordinates, you generate all the points you need in cylindrical coordinates and then use the pol2cart function to convert them en masse to cartesian coordinate…

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