Joseph Dimino

The purpose of this study was to assess the impact of the Developing Mathematical Ideas (DMI) professional development program on grade 4 teachers' in-depth knowledge of fractions as well as their students' understanding and proficiency with fractions. The study was conducted during the 2014/15 school year. A total of 84 schools from eight school districts in three states (Florida, Georgia, and South Carolina) agreed to participate. Participants included 264 grade 4 teachers and their 4,204 s...

Response to intervention (RTI) is a comprehensive early detection and prevention strategy used to identify and support struggling students before they fall behind. An RTI model usually has three tiers or levels of support. Tier 1 is generally defined as classroom instruction provided to all students, tier 2 is typically a preventive intervention offered to students who fall behind when given only classroom instruction, and tier 3 is more intensive intervention offered to students who failed t...

This facilitator's guide is designed to assist professional learning communities (PLCs) in applying evidence-based strategies to help K-8 English learners acquire the language and literacy skills needed to succeed academically. Through this collaborative learning experience, educators will expand their knowledge base as they read, discuss, share, and apply the key ideas and strategies presented in the "Teaching Academic Content and Literacy to English Learners in Elementary and Middle School"...

The report was prepared for the Institute of Education Sciences under Contract No. ED-01-C0039/0010. The project officer is Audrey Pendleton in the National Center for Education Evaluation and Regional Assistance. IES evaluation reports present objective information on the conditions of implementation and impacts of the programs being evaluated. IES evaluation reports do not include conclusions or recommendations or views with regard to actions policymakers or practitioners should take in light