This is a great tool to help explain difficult content. I like that there is a mix of text and images. It alos provides a good mix of engagement including audio, video and assessment. This tool also does a great job of guiding comprehension and discovery. It did seem that the font was a little large and a bit colorful. It became a little distracting. I like the connection to the "real world". I think this helps builds connections for students and touches on UDL and higher order of thinking.
I found it difficult to click on some of the text boxes. You had to click on the outside button area for it to link to the next page. I also fund myself a little lost at some points, trying to figure where to go next.