This open access textbook was developed as an upper division undergraduate textbook for a conflict resolution CR 310U Values and Ethics course (required for a PSU bachelor's degree in CR) and adaptable to a conflict resolution CR 513 graduate course (required for PSU master's degree in CR). Its intended audience are students from Portland State University enrolled in a ten week, quarter system, though it is adaptable for a semester length course. The chapters are combined with other readings on conflict resolution values and ethics. This open access textbook may be used to supplement resources for other courses that address aspects of conflict resolution values and ethics.

Taking negative externalities into account when thinking about the optimal equilibrium price and quantity. Created by Sal Khan.

Demand for normal goods increases when income increases, but demand for inferior goods decreases when income increases. In this video, we use the example of a computer and a car to describe the concepts of normal goods and inferior goods and show how a change in income affects the demand for each using a graph of the demand curve. Created by Sal Khan.

Positive statements are fact-based, but normative statements are based on opinions. In this video, learn about the distinction between positive statements and normative statements, and why economists emphasize positive analysis vs. normative analysis, as well as how to identify positive statements vs. normative statements.

Competition runs across a spectrum from perfectly competitive to monopoly, and two types of competition that lie within this spectrum are monopolistic competition and oligopolies. In this video, we briefly compare these two forms of competition. Created by Sal Khan.

When does an oligopoly act more like a perfectly competitive firm, and when does it act more like a monopolist? Find out in this video. Created by Sal Khan.

OpenIntro Statistics strives to be a complete introductory textbook of the highest caliber. Its core derives from the classic notions of statistics education and is extended by recent innovations. The textbook meets high quality standards and has been used at Princeton, Vanderbilt, UMass Amherst, and many other schools. We look forward to expanding the reach of the project and working with teachers from all colleges and schools.

Open Resources for Community College Algebra (ORCCA) is an open-source, openly-licensed textbook package (eBook, print, and online homework) for basic and intermediate algebra. At Portland Community College, Part 1 is used in MTH 60, Part 2 is used in MTH 65, and Part 3 is used in MTH 95.

This spreadsheet collects the learning objectives from each section of the OpenStax College Algebra book. This is a derivative work and is licensed under CC BY 4.0.

These lecture guides will aid students as they progress through the first semester of College Algebra. They highlight key concepts, allow for note-taking and problem examples to be recorded, and serve to improve student engagement with the material during instruction.

The attached file is a .bok TestGen file which contains the first two chapters of the OpenStax College Algebra Textbook. Using the TestGen software, one can create quizzes, tests and homework assignments compatible with Canvas, Blackboard, Moodle and D2L.

This sample shell is produced by the California Community Colleges CVC-OEI to support faculty in the use of Open Educational Resources and development of courses aligned to the OEI Course Design Rubric.
The shell may be used for online, hybrid, &/or face-to-face classes. The shell is available for all faculty, not just those faculty in the CCC system. 

 The team producing this shell includes Helen Graves, Liezl Madrona, Cyrus Helf, Nicole Woolley & Barbara Illowsky.

 If you are having challenges importing the shell, here are some steps to take. (1) Create an empty shell in your sandbox. (2) Import the Canvas Commons course into your shell. (3) Adapt the content as you wish. (4) If all else fails, contact your college IT person or Canvas administrator.

This collection of worksheets, homework assignments, and study skills exercises was created through a Round 14 Textbook Transformation Grant. The worksheets supplement the following topics as covered in OpenStax Precalculus: Functions, domain and range, rates of change, inverse functions, exponential functions, logarithmic functions, exponential growth modeling, angles, sine and cosine, right triangles, sum identities, and difference identities. Study skills exercises include growth mindset and metacognition activities.

Opportunity cost is the value of something given up to obtain something else. In this video, we explore the definition of opportunity cost, how to calculate opportunity cost, and how the PPC illustrates opportunity cost. Created by Sal Khan.

In this video, we use the PPCs for two different countries that each produce two goods in order to create an output table based on the data in the graph. We then use the output table to determine the opportunity costs of producing each good. Finally, we determine which country has a comparative advantage in each good.

A rational agent considers all costs, including explicit and implicit costs, when deciding whether or not to undertake an action. In this video, learn about how opportunity costs represent the cost of the next best alternative.

Using indifference curves to think about the point on the budget line that maximizes total utility. Created by Sal Khan.

Using some basic calculus to show that marginal revenue has twice the slope of the demand curve for a monopolist. Created by Sal Khan.

It is important for students not only to get an appreciation and understanding of philosophy but also to be exposed to the very words and ideas of those who have shaped our thinking over the centuries. Accordingly, the title of this collection hints at the facts that these readings are from the original sources and that these philosophers were the originators of many of the issues we still discuss today. Major areas of philosophy covered here are: Ethics, Epistemology, Metaphysics, Philosophy of Religion, Ethics, Socio-Political Philosophy, and finally, Aesthetics.

The shape of a production possibility curve (PPC) reveals important information about the opportunity cost involved in producing two goods. When the PPC is a straight line, opportunity costs are the same no matter how far you move along the curve. When the PPC is concave (bowed out), opportunity costs increase as you move along the curve. When the PPC is convex (bowed in), opportunity costs are decreasing.