Getting Textbooks to Zero Student Cost: ZTC and OER

Statistics

• OpenIntro Statistics (Diez, Barr, and Cetinkaya-Rundel)[1] ; OpenIntro Statistics (Diez et al) – LibreTexts (CC BY-SA)
• Statistics Using Technology (Kozak)[2] ; Statistics Using Technology (Kozak) – LibreTexts (CC BY-SA)
• Foundations in Statistical Reasoning (Kaslik)[3] ; Foundations in Statistical Reasoning (Kaslik) – LibreTexts (CC BY-SA-NC)
• Introductory Statistics (OpenStax)[4] ; Introductory Statistics (OpenStax) – LibreTexts (CC BY 4.0)

Finite Math

• Applied Finite Mathematics (Sekhon); Applied Finite Mathematics (Sekhon and Bloom) – LIbreTexts (CC BY)
• Finite Math – Lumen Learning (Licenses vary; “This courseware includes resources copyrighted and openly licensed by multiple individuals and organizations.”

Business Calculus

• Applied Calculus (Calaway, Hoffman, and Lippman) (CC BY)

College Algebra

• Precalculus (OpenStax) ; Precalculus (OpenStax) (LibreTexts) (CC BY)
• College Algebra and Trig (OpenStax); Algebra and Trigonometry (OpenStax) – LibreTexts (CC BY)
• Precalculus: An Investigation of Functions (Includes Trig) 2nd Ed (Lippman, Rasmussen); Precalculus: An Investigation of Functions (Includes Trig) 2^nd Ed (Lippman, Rasmussen) – LibreTexts (CC BY-SA)
• Precalculus: An Investigation of Functions (Includes Trig) 1st Ed (Lippman, Rasmussen) (CC BY-SA)
• Precalculus / College Algebra, 3rd Edition (Stitz, Zeager) (CC BY-NC-SA)
• Precalculus / Trigonometry 3rd Edition (Stitz, Zeager) (CC BY-NC-SA)

Precalculus and Trigonometry

• Contemporary Calculus I (Hoffman) (CC BY)
• Community Calculus (Guichard) (CC BY-NC-SA)
• APEX Calculus 1 (Hartman) ; APEX Calculus 1 (Hartman) – LibreTexts (CC BY-NC-SA)
• Active Calculus (Boelkins); Active Calculus (Boelkins et al.) – LibreTexts (CC BY-NC-SA)
• Calculus Vol 1 (Openstax, Strang, Herman); Calculus (OpenStax) – LibreTexts (CC BY-NC-SA)

Discrete Math

• Discrete Mathematics (Levin) – LibreTexts (CC BY-NC-SA 3.0)
• A Spiral Workbook for Discrete Mathematics (SUNY)  (CC-BY-NC-SA)
• Mathematical Reasoning and Proof (Sundstrom) (CC-BY-NC-SA)
• Introduction to Proofs, an Inquiry-Based approach (Heffron) (CC-GNU)

Ordinary Differential Equations

• Elementary Differential Equations (Trench, 2013); Elementary Differential Equations with Boundary Value Problems (Trench) – LibreTexts (CC BY-NC-SA)
• The Ordinary Differential Equations Project (CC-BY-NC-SA)
• Ordinary Differential Equations (Wiggins) (CC-BY)
• Notes on Diffy Qs (Lebl) (CC-BY)

Introduction to Linear Algebra 

• Linear Algebra (Heffron) (CC BY-SA 2.5)
• Linear Algebra Bookshelf (LibreTexts) (CC BY-NC-SA 3.0)

Statistics

• Introduction to Statistics (OpenStax) – MyOpenMath (CC BY 4.0)
• Statistics Using Technology (Kozak) – MyOpenMath (CC BY-SA)

Business Calculus

• Applied Calculus (Calaway/Hoffman) – MyOpenMath (CC BY 3.0)

College Algebra

• Precalculus OpenStax (California ZTC Project, 2018) – MyOpenMath (CC BY 3.0)
• Precalculus with Trig: OpenStax/Meier/Shahbazian (OpenStax, Meier, and Shahbazian, 2016) – My OpenMath (CC BY)
• College Algebra OpenStax Santa Ana College (Mishal, McKown, and Bradley, 2018) (CC BY)

Precalculus and Trigonometry (Free Account Required)

• Applied Calculus (Calaway/Hoffman) – MyOpenMath (CC BY 3.0)

Calculators

• Calculators 

Online Homework and Videos

• MyOpenMath (GPL + CC-BY) Requires instructor account. Online homework, videos and course templates
• Mathematical Association of America (Webwork) (GNU General Public License/Artistic License)

Simulators

• Statistics Simulator

Videos 

• Mathispower4u Tutorials by James Sousa (Sousa) (CC BY-SA 3.0)
• Mathispower4u (YouTube) (CC BY-SA 3.0)
• HippoCampus
• Khan Academy