Submitted as part of the California Learning Resource Network (CLRN) Phase 3 Digital Textbook Initiative (CA DTI3), CK-12 Advanced Probability and Statistics introduces students to basic topics in statistics and probability but finishes with the rigorous topics an advanced placement course requires. Includes visualizations of data, introduction to probability, discrete probability distribution, normal distribution, planning and conducting a study, sampling distributions, hypothesis testing, regression and correlation, Chi-Square, analysis of variance, and non-parametric statistics.

This textbook covers Algebra II and Trigonometry topics with chapters on equations and inequalities, linear equations and functions, systems of linear equations and inequalities, matrices, quadratic functions and more.

CK-12 Foundation's Algebra FlexBook is an introduction to algebraic concepts for the high school student. Topics include: Equations & Functions, Real Numbers, Equations of Lines, Solving Systems of Equations & Quadratic Equations.

Submitted as part of the California Learning Resource Network (CLRN) Phase 3 Digital Textbook Initiative (CA DTI3), CK-12 Foundation’s high school Biology FlexBook covers cell biology, genetics, evolution, ecology, botany, zoology, and physiology. This digital textbook was reviewed for its alignment with California content standards.

CK-12 Biology for High School FlexBook® covers core biology concepts and includes PLIX, real world examples, videos, and study guides.

CK-12 Chemistry for High School FlexBook® covers core chemistry concepts and includes SIMs, PLIX, real world examples, and videos.

CK-12 Earth Science for Middle School FlexBook® covers core earth science concepts and includes PLIX, real world examples, videos, and study guides.

This book is a "flexed" version of CK-12's Basic Geometry that aligns with College Access Geometry and contains embedded literacy supports. It covers the essentials of geometry for the high school student.

This Algebra 2 course has interactivity included in every lesson. Lessons include questions with immediate feedback to help you learn along the way, videos, lots of interactives (PLIX and Sims), and Adaptive Practice questions help you be sure you understand the material before moving on to build on it. Every lesson has specifically chosen 'Related Modalities' that teach the some concept in different ways. Related Modalities may be additional videos, or interactives, or study guides (often written by other students). You can choose to use the resources that are directly included in the Algebra 2 FlexBook 2.0, or customize the lessons by using the Related Modalities that are most effective for you. We take "Learn it Your Way" seriously!

CK-12 Interactive Physics for High School FlexBook® covers core physics concepts and includes SIMs, PLIX, real world examples, videos, and study guides.

CK-12’s Life Science delivers a full course of study in the life sciences for the middle school student, relating an understanding of the history, disciplines, tools, and modern techniques of science to the exploration of cell biology, molecular biology, genetics, evolution, prokaryotes, protists,fungi, plants, animals, invertebrates, vertebrates, human biology, and ecology. This digital textbook was reviewed for its alignment with California content standards.

CK-12’s Life Science delivers a full course of study in the life sciences for the middle school student, relating an understanding of the history, disciplines, tools, and modern techniques of science to the exploration of cell biology, genetics, evolution, prokaryotes, protists, fungi, plants, the animal kingdom, the human body, and ecology. This digital textbook was reviewed for its alignment with California content standards.

CK-12 Life Science for Middle School FlexBook® covers core life science concepts and includes PLIX, real world examples, and videos.

CK-12 Middle School Math Concepts for seventh grade provides a complete textbook. It presents topics including algebraic thinking, patterns, decimals, decimal operations, fractions, fraction operations, integers, integer operations, ratios, rates, proportions, percents, percent applications, equations, solving equations, inequalities, functions, graphing functions, geometry, plane geometry, solid geometry, area, perimeter, surface area, volume, statistics including mean, median, mode and range, graphing and types of graphs, and probability.

In CK-12 Middle School Math Concepts – Grade 8, the learning content is divided into concepts. Each concept is complete and whole providing focused learning on an indicated objective. Theme-based concepts provide students with experiences that integrate the content of each concept. Students are given opportunities to practice the skills of each concept through real-world situations, examples, guided practice and explore more practice. There are also video links provided to give students an audio/visual way of connecting with the content.

CK-12 Physical Science Concepts covers the study of physical science for middle school students. The 5 chapters provide an introduction to physical science, matter, states of matter, chemical interactions and bonds, chemical reactions, motion and forces, and the types and characteristics of energy.

This is the FlexBook 2.0 version of CK-12's PreCalculus Concepts course. In addition to new formatting and access to teacher insights, there are many curated 'Related Modalities' for each lesson. The text surveys traditional and additional content for a course in sequence after Algebra II and before Calculus or Statistics. The content in this text covers most state standards for Analysis, Trigonometry and Linear Algebra as well as the Common Core Standards suggested for a "Fourth Course" in high school.

CK-12 Foundation's Geometry FlexBook is a clear presentation of the essentials of geometry for the high school student. Topics include: Proof, Congruent Triangles, Quadrilaterals, Similarity, Perimeter & Area, Volume, and Transformations.