An Interactive Course on Mandarin Chinese Pronunciation.
Pitch Perfect Pinyin is a two-part interactive website for learning Pinyin pronunciation.

Welcome to Spanish Grammar in Context, where you will find detailed grammar explanations of the Spanish language. Unlike traditional reference grammars, each topic is explained using authentic video examples from the Spanish in Texas project. Accompanying practice quizzes are available on an open Canvas course site.

Welcome to eTower, a collection of online, interactive modules for learning Chinese language and culture. This free and open resource is specifically designed to bridge users with some previous Chinese language learning experience to a higher proficiency level. Whether you are new to online education or to the Chinese language, these hands-on interactive lessons will immerse you in both the language and culture of China.

Components of the immune system called antibodies are found in the liquid portion of blood and help protect the body from harm. Antibodies can also be used outside the body in a laboratory-based assay to help diagnose disease caused by malfunctions of the immune system or by infections.This virtual laboratory will demonstrate how such a test, termed an enzyme-linked immunosorbent assay (ELISA), is carried out and show some of the key experimental problems that may be encountered.

The Visual Datasets text module discusses the concept of visual learning and presents some suggestions for ways to design learning environments that support students in developing visual literacy skills. Three visual datasets that can be used for problem solving activities in evolution, classification, development, and botany are included:Caminacules: A dataset of imaginary animals that can be used as the basis for a variety of problem-posing and problem-solving activities in evolution, classification, development, and others. Originally generated by J. H. Camin and described by Robert Sokal in an article in the 1983 Journal of Systematic Zoology, 32 (2) 161-163. Dendrogrammaceae: A dataset of imaginary plants that can also be used for problem-posing and problem solving activities in evolution and classification. Warren H. Wagner (The University of Michigan)Oh Phlox!: Close-up images of late season garden phlox plants and selected leaves with leaf miner damage provide opportunities for visual learning practice for the field and for exploration with the use of NIH Image or other graphics packages in biological investigations. Ethel Stanley (Beloit College and Illinois State University)

This set of problems for Linear Algebra in the open-source WeBWorK mathematics platform was created under a Round Eleven Mini-Grant for Ancillary Materials Creation. The problems were created for an implementation of the CC-BY Lyrix open textbook A First Course in Linear Algebra. Also included as an additional file are the selected and modified Lyryx Class Notes for the textbook.

Topics covered include:

Linear Independence
Linear Transformations
Matrix of a Transformation
Isomorphisms
Eigenvalues and Eigenvectors
Diagonalization
Orthogonality

These open-source mathematics homework problems are programmed for the WeBWorK mathematics platform and correspond to chapters in OpenStax Calculus Volume I. They were created through a Round Eight Textbook Transformation Grant.

These open-source mathematics homework problems are programmed for the WeBWorK mathematics platform and correspond to chapters in OpenStax Introductory Statistics. They were created through a Round Eight Textbook Transformation Grant.

eComma is a social reading tool teachers can install in their Learning Management System (LMS). It allows students and teachers to read and annotate texts together, pooling their knowledge and perspectives for a deeper understanding and analysis of what they are reading. The eComma website linked here explains how to explain the tool in an LMS and has a user guide and case studies with ideas for how to use it in a class.

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.

Integrated Digitized Biocollections (iDigBio https://www.idigbio.org) is the National Resource for Advancing Digitization of Biodiversity Collections (ADBC) funded by the National Science Foundation. Through ADBC, data and images for millions of biological specimens are being made available in electronic format for the research community, government agencies, students, educators, and the general public.

The iDigBio specimen portal (https://www.idigbio.org/portal) provides access to millions of records about neontological and paleontological specimens curated at museums and other institutions in the US. Records might include information about the specimen, when, where and by whom it was collected, the institution providing the data, images and other media related to the specimen.