This guide is organized by commonly experienced challenges (e .g ., lack of modeling) to teachers implementing evidence-based adolescent literacy practices with fidelity. Also provided are an explanation of each challenge and resources from established organizations and research centers that instructional leaders can use to address these challenges .

This edition of Euclid’s Elements presents the definitive Greek text—i.e., that edited by J.L. Heiberg (1883– 1885)—accompanied by a modern English translation, as well as a Greek-English lexicon.

This interactive site allows participants to learn about skeletal anatomy by viewing the bones of a human, chimpanzee, and baboon. The Comparative Anatomy section enables users to make direct comparisons of bones. The material is appropriate for science teacher education as it illustrates how careful observation leads one to wonder about the dizzying beauty of a planet that works by bringing us one different creature after another.