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Online Dictionary - Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictionary, thesaurus, dictionary of acronyms and abbreviations, dictionary of idioms, thesaurus, Columbia e...

Definition of word from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games.

DifferentiationCentral is a service of the Institutes on Academic Diversity (IAD) at the University of Virginia

Dictionary.com - the largest and most trusted free online dictionary. Instantly look up accurate and extensive definitions and word meanings, and hear audio pronunciations.

Founded in 1943, ASCD (formerly the Association for Supervision and Curriculum Development) is an educational leadership organization dedicated to advancing best practices and policies for the success of each learner. Our 160,000 members in 148 count...

NCTM serves math teachers, math educators, and administrators by providing math resources and professional development opportunities. Working for more and better math for all students.

The IRIS Center offers special education resources and materials--validated instructional strategies, research-to-practice strategies, best practice strategies--for the effective inclusion and mainstreaming of students with disabilities. The Center p...