Jason Gorman, Sebastian Gsell, Chris Mayfield. Learning relational algebra by snapping blocks. In J. D. Dougherty, Kris Nagel, Adrienne Decker, Kurt Eiselt, editors, The 45th ACM Technical Symposium on Computer Science Education, SIGCSE '14, Atlanta, GA, USA - March 05 - 08, 2014. pages 73-78, ACM, 2014. [doi]
Abstract is missing.