http://www.pdrom.coursepath.org/
The Professional Development Resources Online-Mathematics (PD-ROM) site provides a comprehensive, standards-aligned and textbook-aligned professional development program for teachers of middle school mathematics (grades 5 through Algebra). Each of the twelve courses highlights best practices by showcasing the classroom experiences of two teachers tackling the same concepts with their students. Online learners are presented with a unique view into the classroom through videos of each teacher working with their students on core concepts in a particular lesson. Each course also includes interactive assessments and discussions so that participants can share ideas and collaborate with their mentors.
Technologies utilized: HTML/CSS, CoursePath/ColdFusion.