How algebraic reasoning can be fostered within the important big idea of equivalence is demonstrated using hanging mobiles. A concrete-representational-abstract approach is used, without any formal algebraic symbolism, to elicit algebraic reasoning and higher-order thinking.
This video describes the SolveMe Mobiles app, which is designed to support algebraic reasoning in a fun and interactive format.
In May 2015, seventeen ITEST projects presented videos in the 2015 National Science Foundation Teaching and Learning Video Showcase. Organized by TERC, the showcase contained 112 videos produced by NSF-funded projects associated with one of these resource centers: ARC, CADRE, CAISE, CIRCL,