Researchers at the College of New Jersey have developed a set of visualizations called Scrape
(http://happyanalyzing.com/) that analyze the programming blocks within Scratch projects
(Wolz, Hallberg, & Taylor, 2011). Our first approach to assessing the development of
computational thinking involved using a Scrape tool (the “User Analysis” tool) to analyze the
portfolio of projects uploaded by a particular community member and generate a visual
representation of the blocks used (or not used) in every project.