The purpose of this 4-year efficacy trial, funded by IES under the Mathematics and Science Education topic, is to study the efficacy of a (Tier 1) core kindergarten math curriculum, "Early Learning in Mathematics" (ELM), when implemented under rigorous experimental conditions. In the first year of this study (2008-09), kindergarten…

This commentary on C. Addison Stone's paper on scaffolding for the learning disabilities field suggests that many current applications prevent rather than encourage transfer of responsibility to students for learning and task accomplishment and that current practices in many schools may result in "reverse-scaffolding". (DB)