As I mentioned above, these are the core dimensions of the TRU Math scheme. By the time this article appears in print, the most recent version of the TRU Math scheme (including the rubrics for different classroom activity structures) will be posted on the Algebra Teaching Study (http://ats.berkeley.edu/) and the Mathematics Assessment Project (http://map.mathshell.org/materials/index.php) web sites, along with a guide to understanding and using the scheme.