This research and development project provides resources for ninth-grade mathematics students and teachers in the form of intervention modules designed as supplementary materials for Algebra 1 classes (e.g., double-period algebra). Rather than developing isolated skills and reviewing particular topics, these materials aim to foster the development of mathematical habits of mind—in particular, the algebraic habit of abstracting from calculations, a key unifying idea in the transition from arithmetic to algebra.
Directors: June Mark , E. Paul Goldenberg
Duration: 2009–2013
Website: http://ttalgebra.edc.org/
Funder: National Science Foundation