For this project, I created a screencast in which the learners go through a worked example of drawing a Lewis structure. Because the video is a flash video, I had trouble embedding it on this blog. So, I created a Learning Log on Blogger that allows the interactive part to work. Here is a link to that post.
The content of that post is below:
This screen cast is a worked example for drawing a Lewis structure in Chemistry class. The video takes a Chemistry student through a review of how to draw a Lewis Structure. It then gives the learner a chance to do an example on their own. I wanted to create an interactive experience for the learner in which they are able to pace the work on their own. Unfortunately, I ran into a slew of issues with this. In the end, I needed to place the video here in Blogger rather than WordPress. I know there are better workarounds to accomplish what I was looking for, but time was an issue. I do plan to explore the technology needed to make links within videos a bit more in the future.
Here is the worked example (note, to click “Continue” the video must be watched in full screen format, otherwise the progress bar masks it.) (This is where the interactive video should go, but it doesn’t work in WordPress.
For this worked example, I wanted to begin by giving the the learners a look at what a Lewis structure is to to familiarize them with the vocabulary and the symbols involved. This pre-training would allow them to focus on the procedure, rather than wondering about the symbols. I then proceeded to work through the example step by step. At each step, the learner has the control of whether they feel confidence enough to continue or if they needed to review that step again. Using the segmenting principle puts control of the learning in the users hands. At the end, the learner’s are given a summary of the steps and the option to replay the lesson as a whole or to move on to try an example on their own. The example ends with the option of seeing the actual solution. This example, would help a learner achieve far transfer for the material covered.
One thing to note is that I had some trouble deciding who the learner actually was. I decided to create a video that I could share with my Chemistry class after this material had been presented. It is not meant to be a replacement lecture, but rather a step-by-step worked example of something they should be somewhat familiar with.