Digital library
Textbooks, references and open learning resources.
External
Acoustics
Wikipedia · LibreTexts
Acoustics is the science that studies sound, in particular its production, transmission, and effects. The science of acoustics has many applications which are dependent upon the nature of the sound that is to be produced, transmitted or controlled. In the case of a desirable sound, such as music, the main application of acoustics is to make the music sound as good as possible.
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Commonsense Composition
Crystle Bruno · CK-12
This textbook follows California Language Arts Standards for grades 9-12 to provide a generalized understanding of composition and to serve as a supplementary aid to high school English teachers.
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Human Biology - Digestion and Nutrition
CK-12 Foundation · LibreTexts
The Digestion and Nutrition Student Edition book is one of ten volumes making up the Human Biology curriculum, an interdisciplinary and inquiry-based approach to the study of life science.
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Journalism 101
CK-12 Foundation · LibreTexts
Journalism is unbiased production and distribution of reports on current or past events based on facts and supported with proofs or evidences.
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Jane Good - Elementary- Curation 4th Grade-Reading-and-Writing-Trimester-1.zip
LibreTexts
LibreTexts
External
Philosophy
CK12 · LibreTexts
Philosophy is the study of general and fundamental questions about existence, knowledge, values, reason, mind, and language. Such questions are often posed as problems to be studied or resolved. Major sub-fields of academic philosophy include metaphysics, epistemology, ethics, aesthetics, political philosophy, logic and philosophy of science.
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Leadership in Early Care and Education
Tammy Marino, Maidie Rosengarden, Sally Gunyon, & Taya Noland · Southwestern Oregon Community College & Portland State University
In the contents: 01: Leadership- An Introduction to Leadership Skills in Early Childhood Care and Education · 06: Current Issues in the Field of Early Childhood Education
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Economics
El Paso Independent School District · CK-12
In the contents: 5.13: Education and Employment · 6.01: CK-12 Glossary · EDF 4550: Critical Focus on Education
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Digital Photography Basics
Politzer · CK12
Whether you just got a digital camera (or smart phone), are new to photography, or have a little experience, this course is for you. Each chapter will provide you with information, examples, opportunities to develop your skills, and time to reflect on what you've learned. Instead of a traditional end-of-course final, you'll be guided in the development of a digital photo portfolio to demonstrate your skills.
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United States Government
El Paso Independent School District · LibreTexts
El Paso Independent School District in El Paso, Texas created this US Government text for its high school course using OER, CC, and public domain content from a variety of sources curated by educators in the district. The course is aligned to the Texas TEKS and is usually taken in Grade 10.
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Engineering: An Introduction for High School
Dale Baker, Ed.D., Tirupalavanam G. Ganesh, Ph.D., Stephen Krause, Darryl Morrell, Chell Roberts, & Janel White-Taylor · CK-12
Introduces engineering techniques and practices to high school students. This book is designed for a broad range of student abilities and does not require significant math or science prerequisites.
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Astronomy for Educators
Daniel Barth · University of Arkansas · 2018
Astronomy for Educators provides new and accomplished K-12 instructors with concepts and projects for low-cost, high-impact STEM classroom instruction that is built around the National Academies National Research Council's K-12 Framework for Science Education.
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Teaching Through Rather than About: Analyzing Black Histories and Geographies with Primary Sources
Ken Carano; Amit Kobrowski · Open Oregon Educational Resources · 2025
This book aims to transform how Black histories are taught in the K-12 curriculum by emphasizing instruction through Black voices rather than about them. Using LaGarrett King’s Black Historical Consciousness framework, each chapter provides a structured, inquiry-based lesson plan incorporating primary sources, and some examples of engaging student activities. The book gives educators the tools to challenge biased narratives and create inclusive lessons that help students think critically, build empathy, and better understand Black histories.
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The Roles and Responsibilities of the Special Educator
Paula Lombardi · University of New Hampshire · 2023
This book is evolving into a book by and for teacher candidates pursuing licensing in Elementary, General Special Education, and Early Childhood Special Education in New Hampshire and surrounding New England states. These teacher candidates share their knowledge about teaching PreK-12 learners with disabilities and the many roles and responsibilities of the case manager/special educator.
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Efficacious Technology Management: A Guide for School Leaders
Gary Ackerman · Gary Ackerman · 2018
Dr. Gary Ackerman, an educational technology specialist with decades of experience in K-12, community college, and faculty development has released Efficacious Technology Management: A Guide for School Leaders. This is his second book, and it is available under a Creative Commons license. This book describes efficacious school technology as that which is used for educationally appropriate purposes, is properly configured to be robust and reliable, and is aligned with local expectations, so it is reasonable. This type of school IT emerges from collaborative planning including educators, IT professionals, and school leaders. This book helps educators understand IT and IT professionals understand education, so their collaboration can be efficient and effective.
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International Advances in Writing Research - Cultures, Places, Measures
Bazerman et al. · LibreTexts
In the contents: 2.01: Academic Writing Instruction in Australian Tertiary Education- The Early Years · 2.04: Multimodality in Subtitling for the Deaf and the Hard-of-Hearing Education in Brazil · 3.01: Rethinking K-12 Writing Assessment to Support Best Instructional Practices
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Analysis
CK-Foundation · LibreTexts
LibreTexts
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Precalculus
CK12 · CK12
LibreTexts
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Earth Science
CK-12 Foundation · LibreTexts
LibreTexts
External
Geometry
CK-12 Foundation · LibreTexts
Geometry is one of the oldest branches of mathematics and is concerned with properties of space that are related with distance, shape, size, and relative position of figures.