Downloading SoftChalk LessonBuilder 1.0 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. The program lies within Developer Tools, more precisely Webmaster Tools. We recommend checking the downloaded files with any free antivirus. This Mac application was originally developed by Softchalk.
From the developer:
The SoftChalk LessonBuilder is a stand-alone content creator for Web pages, which allows instructors to easily create interactive learning modules including integrated notes, annotations, and comprehension checking, and then import the lessons into Blackboard, WebCT, or other systems.
You may want to check out more software for Mac, such as LessonBuilder5 or SoftChalk8, which might be similar to SoftChalk LessonBuilder.
Teaching Tools