Crucial Thought Rss

Featured Posts

Chris selected as K12OnlineConference keynote speaker Each year the K12OnlineConference provides tremendous professional development for free, and entirely online. This year, they have selected me as one of their keynote speakers. I am thrilled to have been chosen and look forward to participating in the conversation. Read the full post announcing all the keynote speakers here.

Read more

Two quick links on Cognitive Load Theory I've been fielding lots of questions lately about Cognitive Load Theory. Here are two quick links that may be useful. First is an article talking about the practical implications of CLT on the design of learning. The second are some "recent" (as of 2003) developments regarding CLT. Happy reading! Update: I clarified the second...

Read more

Practical advice on kids and Android app development After hearing about my students' success developing an Android app, I've gotten several emails asking for more details as to how I practically worked with my kids. Here are some pointers that I offered to the first person that emailed me, perhaps they are of some use to you. Please note that your mileage may vary. It's ok to not be...

Read more

Publishing an App Inventor app to the Android Market As I mentioned earlier, my students and I published an Android app to the Android Market. See those links for more information on the background. This post is decidedly technical. First, once we finished the coding process, we packaged the app for to download to the computer. This is an option in App Inventor. This downloaded an .apk file....

Read more

Designing and publishing an Android app with kids This post is designed to provide some context around how/why we decided to build this app. The more technical details of the code and how we published it will come in a future post. My students and I recently completed and published an Android app, and here's how we did it. First, the genesis for this goes back to a question I asked...

Read more

Free one month account for educators

Category : Featured,

My friends at are offering educators one free month of a pro account. You can read my thoughts on but suffice it to say I like it very much.

If you want the free month of a pro account, fill in this form. Enjoy!

Exploring different conferencing options – deciding on joinme

Category : Featured,

I have been a faithful DimDim user since David Jakes told me about it at NYSCATE in November of last year. I ended up purchasing a year’s subscription right before they got bought by Salesforce. While I still have a few months left on my subscription, I decided to go hunting for a new solution, so as not to be hurried. Here are my needs/wants/etc…

  1. Easy phone conferencing. One feature I adore about DimDim is the included voice conferencing. Lots of the folks I deal with don’t care for VOIP, and neither do I.
  2. Screen sharing.
  3. Cost effective

Aside from those two options, everything else is icing on the cake. The vast majority of webinars, technical support calls, and conference calls I do need only those two options. However, that proved quite difficult to find.

I explored several of the major conferencing providers, and discovered that most, if not all, charge lots of money for phone conferencing. For example:

  • Cisco’s WebEx – charges by the minute for phone conferencing.
  • Elluminate – charges by the minute for phone conferencing.
  • Fuze Meeting – costs a bundle monthly.

And so on and so forth.

Note that I do not mind paying for a service that works. I pay for DimDim. But I could not see paying by the minute for phone conferencing.


I initially discovered as I needed a quick and easy solution to helping my parents with their ailing computer. allowed me to control their computers with ease.

Did you know every session comes with a free phone conferencing session? I didn’t. I learned it did. And I was hooked.

In fact, every session allows up to 250 people to participate on the phone conference. For free. Outstanding.

So now I am using as my conferencing provider. I fire up my presentation in Keynote or Google Presentations and present that way. I get a chat room, phone conference, and can even let others participate.

And, there are Android and iOS apps for viewing presentations.

So I’m a convert. Try it and let me know what you think.

Full disclosure: Since I heart so much and have been using it so much over the last few months, we decided to work together. So I am helping them perfect an already outstanding product a few hours each month. My opinion of the product is not shaped by our agreement, I work with them because I believe they’ve got a good thing going.