CK-12 Foundation
Ck 12: Life Science: Scientific Theories
[Free Registration/Login may be required to access all resource tools.] Today most people realize that microorganisms, such as bacteria or viruses, are the cause of disease. This concept is known as the germ theory of disease, one of the...
TED Talks
Ted: Ted Ed: Why Do Competitors Open Their Stores Next to One Another?
Discover how game theory and Nash Equilibrium affect where retailers set up businesses to compete with each other. [4:07]
Texas Instruments
Texas Instruments: Texas Instruments: Numb3 Rs: When Does 1 + 1 Not Equal 2?
Based off of the hit television show NUMB3RS, this lesson will get students thinking outside the box about situations in which 1 + 1 is not necessarily equal to 2. Examples includes dozens of eggs and distances which are perpendicular.
Yale University
Yale University: Open Yale Courses: Introduction to Theory of Literature
Access any one of twenty-five lectures, in audio, video, or text format, from a university-level course in literary analysis and critical literary theories. Considers postmodernism, New Criticism, feminism, deconstructionism, and an...
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Fractions, Number Theory
Twenty problems presented on the topics: factors, prime/composite and many aspects of working with fractions. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click...
Khan Academy
Khan Academy: Threshold Card: Threshold 1 the Big Bang
An infographic describing nine "thresholds of increasing complexity" associated with the Big Bang theory.
CK-12 Foundation
Ck 12: Gas Properties
[Free Registration/Login may be required to access all resource tools.] The following online tutorial describes how a gas can be compressed and identifies three factors that affect gas pressure. Students will describe the effects...
Digital History
Digital History: Three Theories Explaining Imperialism [Pdf]
Read about three theories of Imperialism and how actions by the United States in the late 19th and early 20th centuries were driven by one or perhaps all three of the theories.
Physics Classroom
The Physics Classroom:einstein Theory of Special Relativity: Length Contraction
One of the peculiar aspects of Einstein's theory of special relativity is that the length of objects moving at relativistic speeds undergoes a contraction along the dimension of motion. These animations depict this phenomena of length...
Frostburg State University
General Chemistry: Gaseous Equation of State Calculator
A JavaScript calculator which allows one to investigate the distinction between an ideal gas and a real (Van der Waal or Dieterici) gas. State variables can be entered and an update on the values of other variables are given (as...
Sophia Learning
Sophia: Realistic Conflict Theory: Lesson 1
At the end of this tutorial, the learner will understand Realistic Conflict Theory as one way of modeling and describing conflict. It is 1 of 3 in the series titled "Realistic Conflict Theory."
University of Toronto (Canada)
How Can One Show That Imaginary Numbers Really Do Exist?
Contains a brief summary about the theory of imaginary numbers.
TED Talks
Ted: Ted Ed: How Many Universes Are There?
Video describes how recently scientists have postulated the existence of more than one universe. [4:43] Includes a brief quiz and a list of additional resources to explore.
PBS
Wnet: Thirteen: Concept to Classroom: Inquiry Based Learning
One of eleven workshops presented by Concept to Classroom, this workshop on Inquiry-based Learning takes you through four major steps (explanation, demonstration, exploration, and implementation) to learn about it, then put it into...
Victorian Web
The Victorian Web: John Ruskin
This site from The Victorian Web provides an excellent variety of resources about Victorian author John Ruskin. It takes one from a detailed biography and relative social and political history, to themes, critical theory, and information...
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Minkowski Diagram Model
Simulation examining simultaneity and causality in special relativity by manipulating the space and time coordinates of one or two events.
CK-12 Foundation
Ck 12: Concepts, Classification and States of Matter
[Free Registration/Login may be required to access all resource tools.] Freshly baked bread and cherry pie are two delicious parts of any meal. What happens to the ingredients that go into the bread and the pie as they are heated in the...
PBS
Wnet: Thirteen: Concept to Classroom
Concept to Classroom is a free series of award-winning professional development workshops covering important and timely topics in education such as: after-school programs, cooperative and collaborative learning, inquiry-based learning,...
Rice University
Hyper Stat Online Statistics Textbook: Trend Analysis
A series of pages that help us understand testing one or more components of a trend using specific comparisons, a set of coefficients, error analysis of variance and the probability value.
Science Education Resource Center at Carleton College
Serc: Science and Religion
A lesson using the strategy of structured academic controversy where learners explore the roots of differing perspectives on evolution, In the process, they develop a deepened understanding of science and religion, and tolerance for...
Physics Classroom
The Physics Classroom: Thermal Physics: What Is Heat?
This physics tutorial is devoted to understanding how the relative temperature of two objects affects the direction that heat is transferred between the two objects.
CK-12 Foundation
Ck 12: Plix: Law of Reflection: Angle of Incidence
[Free Registration/Login Required] In the scenario shown here, the laser cannot shine through the black barrier but can hit all three targets by reflecting off of the floor. Use the red dot to change the angle of the laser generator and...
Khan Academy
Khan Academy: Gestalt Principles and Ratings of Physical Attractiveness
This is a five-question quiz based on the passage "Gestalt Principles and Ratings of Physical Attractiveness"
Khan Academy
Khan Academy: Physiological Needs and Pregnancy
Read this passage and study the chart to complete the five-question quiz concerning physiological needs and pregnancy.